Trait conflict

Trait conflict is where a trait conflicts with another trait such as Evil conflicting with Good. Traits can have one or two conflicts with some being added in newer games of The Sims 3. In the Original The Sims 3, traits could have up to 2 conflicts but as of Generations, there are 3 traits with 3 conflicts which are Couch Potato, Dislikes Children and Easy Going. With a Young Adult, it is possible to have a Sim that conflicts with 12 traits. This article contains a list of trait conflicts. Depending if the game is The Sims 3 or The Sims Medieval, relationship may be effected.

The Sims 3 and The Sims 3 (PS3/Xbox 360)
If an incompatible trait is learned, relationship will be decreased slightly. Using a social whose trait prevents the social from working (EG, Joke about Work on a Workaholic or Talk about Computers on a Technophobe) will learn the trait and may decrease the relationship if that trait has a conflict. Additionally, the Observant LTR can cause conflicting traits to be learned when the Sim starts to socialize with that Sim. Vampires' read mind can also cause conflicting traits to be learned.

If a Sim has more than one trait that both result in a conflict and shared traits, both of those actions will occur. For example, a Sim who has the Brave and Workaholic traits will result in "Trait Incompatibility" and "Talk about shared traits" respectively when the Sim learn the traits of Vladimir Schlick due to his Coward and Workaholic traits. Learning more than one conflicting trait is only possible with Observant.

The Sims Medieval
Relationship is no longer decreased when an incompatible trait is learned. In addition, learning the shared trait will no longer increase relationship. Social effectiveness from traits are same as The Sims 3.

List of traits with conflicts
Note: All traits listed here apply only to Windows and Mac OS X as well as PS3 and Xbox 360. For PS3 and Xbox 360 versions, ignore traits introduced in Expansion Packs and the Vehicle Enthusiast trait. New conflicts are in bold.

Traits with no conflicts

 * Adventurous
 * Ambitious
 * Angler
 * Bookworm
 * Born Salesman/Born Saleswoman
 * Clumsy
 * Dramatic
 * Eccentric
 * Frugal
 * Genius
 * Great Kisser
 * Green Thumb
 * Handy
 * Hydrophobic
 * Inappropriate
 * Insane
 * Kleptomaniac
 * Mooch
 * Natural Cook
 * Neurotic
 * Never Nude
 * Over-Emotional
 * Perfectionist
 * Photographer's Eye
 * Star Quality
 * Vegetarian
 * Vehicle Enthusiast
 * Virtuoso
 * Workaholic

Traits with 1 conflict

 * Absent-Minded (Perceptive)
 * Artistic  (Can't Stand Art)
 * Athletic  (Couch Potato)
 * Charismatic  (Loser)
 * Childish  (Dislikes Children)
 * Commitment Issues  (Hopeless Romantic)
 * Computer Whiz  (Technophobe)
 * Daredevil  (Coward)
 * Disciplined  (Couch Potato)
 * Easily Impressed  (Snob)
 * Eco-Friendly  (Hates the Outdoors)
 * Evil  (Good)
 * Excitable  (Grumpy)
 * Family-Oriented  (Dislikes Children)
 * Friendly  (Mean Spirited)
 * Good  (Evil)
 * Good Sense of Humor  (No Sense of Humor)
 * Heavy Sleeper  (Light Sleeper)
 * Hopeless Romantic  (Commitment Issues)
 * Hot-Headed  (Grumpy)
 * Light Sleeper  (Heavy Sleeper)
 * Loner  (Party Animal)
 * Loves the Outdoors  (Hates the Outdoors)
 * Lucky  (Unlucky)
 * Mean Spirited (Friendly)
 * Neat  (Slob)
 * No Sense of Humor  (Good Sense of Humor)
 * Nurturing  (Dislikes Children)
 * Perceptive  (Absent-Minded)
 * Rebellious  (Schmoozer)
 * Savvy Sculptor (Can't Stand Art)
 * Schmoozer (Rebellious)
 * Slob  (Neat)
 * Snob  (Easily Impressed)
 * Unflirty  (Flirty)
 * Unlucky  (Lucky)

Traits with 2 conflicts

 * Brave  (Coward, Loser)
 * Can't Stand Art  {Artistic, Savvy Sculptor)
 * Coward  (Brave, Daredevil)
 * Flirty  (Unflirty, Shy)
 * Grumpy  (Excitable, Hot-Headed)
 * Hates the Outdoors  (Loves the Outdoors, Eco-Friendly)
 * Loser  (Brave, Charismatic)
 * Party Animal  (Loner, Shy)
 * Shy  (Flirty, Party Animal)
 * Technophobe  (Computer Whiz, Couch Potato)

Traits with 3 conflicts

 * Couch Potato  (Athletic, Technophobe, Disciplined)
 * Dislikes Children  (Family Oriented, Childish, Nurturing)

Trivia

 * No trait with 1 conflict has gained an additional conflict in World Adventures and Generations.
 * Shy is the only trait introduced in an Expansion Pack that conflicts with 2 traits.
 * Absent-Minded and Schmoozer are the only traits that gained a conflict but did not conflict with any trait.
 * Ambitions and Generations are even numbered Expansion Packs and their respective traits were introduced in these games.