trait vs serious-mindedness

Other hyponyms of trait include character, fiber, fibre, nature, compulsiveness, compulsivity, emotionalism, emotionality, emotionlessness, unemotionality, activeness, activity, inactiveness, inactivity, inertia, earnestness, seriousness, sincerity, frivolity, frivolousness, communicativeness, uncommunicativeness, thoughtfulness, thoughtlessness, unthoughtfulness, attentiveness, inattentiveness, masculinity, femininity, muliebrity, trustiness, trustworthiness, untrustiness, untrustworthiness, individualism, individuality, individuation, stinginess, egocentrism, egoism, self-centeredness, self-concern, self-interest, drive, firmness, firmness of purpose, resoluteness, resolution, resolve, irresoluteness, irresolution, discipline, indiscipline, undiscipline, pride, conceit, conceitedness, vanity, humbleness, humility, wisdom, wiseness, folly, foolishness, unwiseness, judgement, judgment, perspicacity, sound judgement, sound judgment, trust, trustfulness, trustingness, distrust, distrustfulness, mistrust, cleanliness, uncleanliness, behavior, behaviour, conduct, demeanor, demeanour, deportment, flexibility, tractability, tractableness, intractability, intractableness, ruralism, rurality.