名詞 propensity:

1. an inclination to do something
   同義詞：leaning, tendency
2. a natural inclination
   同義詞：proclivity, leaning
3. a disposition to behave in a certain way
   同義詞：aptness

1. A disposition to feel, do, or say; a propensity.
   意向感覺、做或說的意向; 傾向
2. A propensity for being displeased with anything that is not perfect or does not meet extremely high standards.
   完美主義對于任何不完美或未達到最高標準的事都有不滿意的傾向

pro.pen.si.ty

n.（名詞）
【復數(shù)】 pro.pen.si.ties
An innate inclination; a tendency.See Synonyms at predilection
傾向，特性：內(nèi)在的趨向；趨勢參見 predilection

來源：
From propense [inclined]
源自 propense [傾向的]
from Latin prôpônsus [past participle of] prôpendôre [to be inclined] * see propend
源自 拉丁語 prôpônsus [] prôpendôre的過去分詞 [有傾向的] *參見 propend