Trait (The Sims 4)

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, i.e. normal traits, bonus traits, and reward traits. Each kind has different ways to earn them.

List of Traits
Normal traits are main personality traits. Sims that are created in CAS may have up to three traits. These traits affect the Sim's emotions based on certain circumstances, i.e., a Creative Sim may become randomly Inspired, and Sims that Love the Outdoors will sometimes feel cooped up if they stay inside too long. The following list is the traits that appear in the game.

Bonus Traits
Bonus traits are given to Sims when they choose an aspiration. This trait sticks to the Sim even if the aspiration is later changed. . Below are the bonus traits given for choosing certain aspirations.

Reward Traits
Reward traits are given to Sims as an award after fulfilling an aspiration.
 * Athletic
 * Bodybuilder: Long Lived – Long Lived lets Sims live longer lives, barring any accidents.
 * Creativity
 * Painter Extraordinaire: Paintbrush Revolutionary – Paintbrush Revolutionaries can see the world in a new, inspiring way.
 * Musical Genius: Piper – Pipers know an arsenal of songs that have significant power over others.
 * Bestselling Author: Poetic – Poetic Sims can capture life itself in a book, and wield it to bring back someone they've lost.
 * Deviance
 * Public Enemy: Mastermind – Masterminds know just the right things to say to cause anger, sadness, and jealousy in their opponents.
 * Chief of Mischief: Tormentor – Tormentors can sabotage almost anything, be it an object, or another Sim’s best efforts.
 * Family
 * Successful Lineage: Vicarious – By being Vicarious, your Children's skill gains can contribute to your own!
 * Big Happy Family: Matriarch/Patriarch – Matriarchs/Patriarchs provide skill boosts whenever they are around their children.
 * Food
 * Master Chef: Fresh Chef - Fresh Chefs always make the highest quality food, and it never spoils!
 * Master Mixologist: Potion Master – Potion Masters can mix potent drinks which can sway the drinker's emotions.
 * Fortune
 * Fabulously Wealthy: Shrewd – Shrewd Sims receive a direct deposit each week based on their Household Funds.
 * Mansion Baron: Thrifty – Thrifty Sims receive a 10% rebate on all Build Mode purchases made each week. Rebates will be directly applied to Household Funds.
 * Knowledge
 * Renaissance Sim: Professorial – Professorial Sims can write helpful manuals about any skill they're well-versed in.
 * Nerd Brain: Handy – Handy Sims can instantly Fix and Upgrade any object.
 * Computer Whiz: High Tech – Webmasters get the most out of their computers, unlocking extremely useful ways to use them.
 * Love
 * Serial Romantic: Player – Players will never cause other Sims to get jealous, no matter what they do.
 * Soulmate: Companion – Sims with a Companion have special interactions with their spouse that help ease the trials of life.
 * Nature
 * Freelance Botanist: Naturalist – Sims that are Naturalists don't need to fear fire; it won't touch them, and they can extinguish it with ease.
 * The Curator: Appraiser - Appraisers can sell collectibles, like Metals, Crystals, Elements, and Fossils to the Simsonian Museum for extra money.
 * Angling Ace: Angler's Tranquility – Sims with Angler's Tranquility will find that all of their problems seem to melt away while they are fishing.
 * Outdoor Enthusiast: Survivalist – Survivalists are happy roughin’ it and like living off the land. Sleeping under the stars or using camping equipment provides lots of enjoyment.
 * Popularity
 * Joke Star: Hilarious – Hilarious Sims can never go wrong with a joke, and have a few extra-special ones up their sleeve.
 * Friend of the World: Beloved – Everyone remembers a Beloved Sim! Their relationships never fade.
 * Party Animal: Perfect Host – Perfect Hosts get a boost to the score of any social event they throw.

Some Reward Traits can be bought with Satisfaction Points.