List of Traits in The Sims 4

Personality traits:

Emotional traits

Ambitious (BG) - trait_Ambitious
Cheerful (BG) - trait_Cheerful
Childish (BG) - trait_Childish
Clumsy (BG) - trait_Clumsy
Creative (BG) - trait_Creative
Erratic (BG) - trait_Insane
Genius (BG) - trait_Genius
Gloomy (BG) - trait_Gloomy
Goofball (BG) - trait_Goofball
High Maintenance (GP2) - trait_HighMaintenance
Hot-Headed (BG) - trait_HotHeaded
Lovebug (EP16) - trait_LoveStruck
Paranoid (GP7) - trait_Paranoid
Practice Makes Perfect (BG) - trait_PracticeMakesPerfect
Romantic (BG) - trait_Romantic
Romantically Reserved (EP16) - trait_RomanticallyReserved
Self-Assured (BG) - trait_SelfAssured
Squeamish (GP1) - trait_Squeamish
Unflirty (EP3) - trait_Unflirty
Wise (EP15) - trait_Wise

Hobby traits

Art Lover (BG) - trait_ArtLover
Bookworm (BG) - trait_Bookworm
Dance Machine (EP2) - trait_DanceMachine
Foodie (BG) - trait_Foodie
Geek (BG) - trait_Geek
Loves Outdoors (BG) - trait_LovesOutdoors
Maker (EP9) - trait_Maker
Music Lover (BG) - trait_MusicLover
Recycle Disciple (EP9) - trait_RecycleDisciple

Lifestyle traits

Active (BG) - trait_Active
Adventurous (EP10) - trait_Adventurous
Chased/Embraced by Death (EP17) - trait_ChasedByDeath
Child of the Islands (EP7) - trait_IslandAncestors
Child of the Ocean (EP7) - trait_ChildoftheOcean
Child of the Village (EP15) - trait_ChildoftheSEA
Freegan (EP9) - trait_Freegan
Glutton (BG) - trait_Glutton
Green Fiend (EP9) - trait_GreenFiend
Kleptomaniac (BG) - trait_Kleptomaniac
Lactose Intolerant (EP11) - trait_LactoseIntolerant
Lazy (BG) - trait_Lazy
Macabre (EP17) - trait_Macabre
Materialistic (BG) - trait_Materialistic
Neat (BG) - trait_Neat
Overachiever (EP12) - trait_Overachiever
Perfectionist (BG) - trait_Perfectionist
Rancher (EP14) - trait_Rancher
Skeptical (EP17) - trait_Skeptical
Slob (BG) - trait_Slob
Vegetarian (BG) - trait_Vegetarian

Social traits

Animal Enthusiast (EP11) - trait_AnimalEnthusiast
Bro (BG) - trait_Bro
Cat Lover (EP4) - trait_CatLover
Cringe (EP15) - trait_Cringe
Dog Lover (EP4) - trait_DogLover
Evil (BG) - trait_Evil
Family-oriented (BG) - trait_FamilyOriented
Generous (EP15) - trait_Generous
Good (BG) - trait_Good
Hates Children (BG) - trait_HatesChildren
Horse Lover (EP14) - trait_HorseLover
Insider (EP2) - trait_Insider
Jealous (BG) - trait_Jealous
Loner (BG) - trait_Loner
Loyal (BG) - trait_Loyal
Mean (BG) - trait_Mean
Noncommittal (BG) - trait_CommitmentIssues
Nosy (EP15) - trait_Nosy
Outgoing (BG) - trait_Outgoing
Party Animal (EP12) - trait_PartyAnimal
Proper (EP10) - trait_Proper
Self-Absorbed (EP6) - trait_SelfAbsorbed
Snob (BG) - trait_Snob
Socially Awkward (EP12) - trait_SociallyAwkward

Toddler traits (All base game)

Angelic - trait_Toddler_Angelic
Charmer - trait_Toddler_Charmer
Clingy - trait_Toddler_Clingy
Fussy - trait_Toddler_Fussy
Independent - trait_Toddler_Independent
Inquisitive - trait_Toddler_Inquisitive
Silly - trait_Toddler_Silly
Wild - trait_Toddler_Wild

Infant traits (All base game)

Cautious - trait_Infant_Cautious
Sensitive - trait_Infant_Sensitive
Calm - trait_Infant_Calm
Intense - trait_Infant_Intense
Wiggly - trait_Infant_Wiggly
Sunny - trait_Infant_Sunny

Lifestyles (All Snowy Escape)

Sedentary - trait_Lifestyles_Sedentary
Energetic - trait_Lifestyles_Energetic
Technophobe - trait_Lifestyles_Technophobe
Techie - trait_Lifestyles_Techie
Close-Knit - trait_Lifestyles_CloseKnit
People Person - trait_Lifestyles_Networker
Indoorsy - trait_Lifestyles_Indoorsy
Outdoorsy - trait_Lifestyles_Outdoorsy
Junk Food Fiend - trait_Lifestyles_JunkFoodDevourer
Health Food Nut - trait_Lifestyles_HealthFoodNut
Single and Lovin' It - trait_Lifestyles_NoNeedForRomance
Hungry for Love - trait_Lifestyles_HungryForLove
Adrenaline Seeker - trait_Lifestyles_AdrenalineSeeker
Frequent Traveler - trait_Lifestyles_FrequentTraveler
Coffee Fanatic - trait_Lifestyles_CoffeeFanatic
Workaholic - trait_Lifestyles_Workaholic

Cat traits (All Cats & Dogs)

Affectionate - trait_Pet_Loyal_Cat
Aloof - trait_Pet_Independent_Cat
Clever - trait_Pet_Smart_Cat
Curious - trait_Pet_Curious_Cat
Fluffy - trait_Pet_Hairy_Cat
Free spirit - trait_Pet_Wanderlust_Cat
Friendly - trait_Pet_Friendly_Cat
Frisky - trait_Pet_Active_Cat
Glutton - trait_Pet_Glutton_Cat
Lazy - trait_Pet_Lazy_Cat
Mischievous - trait_Pet_Naughty_Cat
Playful - trait_Pet_Playful_Cat
Prowler - trait_Pet_Hunter_Cat
Skittish - trait_Pet_Skittish_Cat
Spoiled - trait_Pet_Stubborn_Cat
Talkative - trait_Pet_Vocal_Cat
Territorial - trait_Pet_Aggressive_Cat

Dog traits (All Cats & Dogs)

Active - trait_Pet_Active_Dog
Adventurous - trait_Pet_Wanderlust_Dog
Aggressive - trait_Pet_Aggressive_Dog
Couch potato - trait_Pet_Lazy_Dog
Friendly - trait_Pet_Friendly_Dog
Glutton - trait_Pet_Glutton_Dog
Hairy - trait_Pet_Hairy_Dog
Hunter - trait_Pet_Hunter_Dog
Independent - trait_Pet_Independent_Dog
Jumpy - trait_Pet_Skittish_Dog
Loyal - trait_Pet_Loyal_Dog
Playful - trait_Pet_Playful_Dog
Sleuth - trait_Pet_Curious_Dog
Smart - trait_Pet_Smart_Dog
Stubborn - trait_Pet_Stubborn_Dog
Troublemaker - trait_Pet_Naughty_Dog
Vocal - trait_Pet_Vocal_Dog

Horse traits (All Horse Ranch)

Aggressive - trait_Horse_Personality_Aggressive
Brave - trait_Horse_Personality_Brave
Defiant - trait_Horse_Personality_Defiant
Energetic - trait_Horse_Personality_Energetic
Fearful - trait_Horse_Personality_Fearful
Free spirit - trait_Horse_Personality_FreeSpirit
Friendly - trait_Horse_Personality_Friendly
Independent - trait_Horse_Personality_Independent
Intelligent - trait_Horse_Personality_Intelligent
Mellow - trait_Horse_Personality_Mellow
Needy - trait_Horse_Personality_Needy