Trait is a personality system in The Sims 4, similar to the trait system in The Sims 3. The personality system as a building block of Sims in The Sims 4 is a combination of trait from The Sims 3 and aspiration from The Sims 2. There are three kinds of traits in the game: normal traits, bonus traits, and reward traits. Each kind has different ways to earn them.
As Sims socialize with others, they may reveal their traits from certain interactions. For example, asking a Sim's career will reveal if they have the ambitious trait, or flirting with a Sim may reveal the romantic trait. The Observantreward trait allows a Sim to instantly learn the traits of other Sims.
Adult Sims created in Create a Sim may have up to three traits, and a bonus trait relating to their chosen aspiration. Teens created may have up to 2 traits, children only may only have 1 trait, and toddlers have 1 personality trait that is different from the other traits. All traits affect a Sim's behavior and emotions, for example, a creative Sim may randomly become inspired, while a Sim that loves outdoors will sink into a low mood if they stay inside too long.
Unlike The Sims 3, there is no soft limit on the amount of traits an individual Sim can have. Further traits can be earned by either completing aspirations and receiving reward traits, purchasing traits with Satisfaction Points, achieving a high level in the Doctor career, and even dying.
The following lists all traits that appear in the game.
Sims will receive a unique reward trait when fulfilling aspirations. There is no limit on the number of aspirations that can be completed, and thus no limit on the number of aspiration reward traits that can be earned.
Friend of the Animals
It is easier to Train and Discipline animals as well as gain relationship with them faster.
Long Lived lets Sims live longer lives, barring any accidents.
Expressionistic Sims have captured the essence of feeling, and can create highly emotional works of art regardless of their actual mood!
Poetic Sims can capture life itself in a book, and wield it to bring back someone they've lost.
Pipers know an arsenal of songs that have significant power over others.
Masterminds know just the right things to say to cause anger, sadness, and jealousy in their opponents.
Chief of Mischief
Tormentors can sabotage almost anything, be it an object, or another Sim’s best efforts.
By being Vicarious, your Children's skill gains can contribute to your own!
Big Happy Family
Matriarchs/Patriarchs provide skill boosts whenever they are around their children.
I am the Master
I am the Master grants supernatural control. Command Powers used on Vampire Offspring always succeed.
Gives bonus Character Value scoring when near Toddlers, Children, or Teens.
Fresh Chefs always make the highest quality food, and it never spoils!
Potion Masters can mix potent drinks which can sway the drinker's emotions.
Melt Masters have devoted enough of their love and bodies to grilled cheese to truly become Gurus of Gruyere. They can summon Grilled Cheese Sandwiches and Paint Grilled Cheese Paintings.
Shrewd Sims receive a direct deposit each week based on their Household Funds.
Thrifty Sims receive a 10% rebate on all Build Mode purchases made each week. Rebates will be directly applied to Household Funds.
A True Master
A True Master not only excels at Mind Control Powers, they also have greater stores of Vampire Energy to call upon.
Professorial Sims can write helpful manuals about any skill they're well-versed in.
Webmasters get the most out of their computers, unlocking extremely useful ways to use them.
Handy Sims can instantly Fix and Upgrade any object.
In the Know
Sims who are In the Know can get a massive discount on market stall purchases if they Haggle with vendors.
Players will never cause other Sims to get jealous, no matter what they do.
Sims with a Companion have special interactions with their spouse that help ease the trials of life.
Survivalists are happy roughin’ it and like living off the land. Sleeping under the stars or using camping equipment provides lots of enjoyment.
Sims that are Naturalists don't need to fear fire; it won't touch them, and they can extinguish it with ease.
Sims with Angler's Tranquility will find that all of their problems seem to melt away while they are fishing.
Appraisers can sell collectibles, like Metals, Crystals, Elements, and Fossils to the Simsonian Museum for extra money.
Leader of the Pack
Sims that are Natural Leaders will earn Club points much faster, and they will be able to overthrow other leaders with ease.
Hilarious Sims can never go wrong with a joke, and have a few extra-special ones up their sleeve.
Friend of the World
Everyone remembers a Beloved Sim! Their relationships never fade.
Perfect Hosts get a boost to the score of any social event they throw.
Vampires with Regained Humanity seem kinder and safer. Sims are more likely give permission to Drink.
Responsible Sims perform better at their jobs and can teach children and teens how to be responsible.
Irresponsible Sims are uncomfortable at work, but ignoring bills and slacking off brings them joy. They may also encounter new situations when at work.
Sims with Good Manners won't want to do any gross manners interactions, at least not in front of anyone. They also have a new Polite Introduction and can gain friendly relationships faster. Good Mannered Sims can also Offer Gratitude to the Host of a house they are visiting.
Sims with Bad Manners can try to be Friendly, but will always fail using certain socials. They will often use gross manners, swear a lot, and never want to do the dishes.
Sims who have the Emotional Control Trait can relieve negative moods by jogging, listening to certain music, blogging on the computer, or playing an instrument. In general, their negative emotions will go away faster than other Sims.
Sims with Uncontrolled Emotions won’t be able to relieve their negative emotions as fast as other Sims. When they have strong negative emotions, they may have an emotional meltdown.
Mediator Sims have a higher chance at successfully apologizing to other Sims and can Mediate the Forums. They can also mend differences with Sims they have not been friendly with for a long time.
Argumentative Sims don’t always start conversations on the right foot with Sims they don’t like. Successfully apologizing is harder and they do try to assert their correctness more often than not.
Compassionate Sims can help other Sims relieve their negative emotions. They can also empathize with them by Sharing Emotional Burdens. However, these Sims get stressed when being Mean.
Insensitive Sims are able to Question other Sims’ negative emotions. They can also instigate other Sims. Insensitive Sims will have a higher chance of failing socially when talking to Sims with bad emotions.
These traits are bestowed upon a Sim for a short time only before being removed. Childhood phases in the The Sims 4: Parenthood are randomly experienced only by child and teen Sims.
From drinking Smart serum. Lasts for 6 hours.
This Sim has become a Temporary Genius. These Sims are more Focused for mental pursuits, which they require to remain Happy... If only it was permanent.
This Sim feels safest when interacting with their caregiver. There is no reason to interact with others when you have such an amazing person in your life. Forcing this Sim to interact with others will stress them out.
Childhood phase. Sims will receive a Tense +2 Moodlet when around family members.
This teen has become distant. Being near and interacting with family has started to stress them out. The world just doesn’t understand them.
I'm a Bear!
Be the Bear! This child will accept nothing less than dressing as an amazing fruit-themed ruler of the forest. It will feel unbearable to wear any other outfits.
This Sim is letting the world hear his/her voice! This Sim yells, makes noise on instruments, and will listen to music as loud as possible. Earplugs are advised for other family members.
Childhood phase. Sims will autonomously be Mean to other Sims and will get a Happy +2 Moodlet when using Mean interactions.
It is time to be Mean just because. This Sim is feeling nasty and will relish the chance to be Mean to other Sims.
Childhood phase. Sims will get a Sad +2 Moodlet when eating food that requires a high skill level. They will enjoy eating Quick Meals or low-level dishes.
It's good to be a Picky Eater. Keep all those nasty culinary concoctions away from the Sim. They will prefer to eat their favorite Quick Meal.
Growing up means rebelling against the old fuddy duddy’s rules. This Sim will argue with their parents more often, swear, and procrastinate when doing homework.
The Sims 4 features numerous hidden traits that are never visible. Many of them are used only for technical purposes, such as marking which secret lots have been visited, assigning walkstyles, or to provide functionality for NPCs. The following hidden traits function similarly to regular traits, but are simply not visible.
These Sims prefer to use their left hand. Left-handed Sims are more skillful with their left hands when performing tasks.
These Sims prefer to use their right hand. Right-handed Sims are more skillful with their right hands when performing tasks.
Alien Sims will have this trait, though it can only be viewed when editing an Alien in CAS and setting Club membership requirements. There is no in-game description.
Vampire Sims will have this trait, though it can only be viewed when editing a Vampire in CAS and setting Club membership requirements. There is no in-game description.