disposition, nature, character

woman, female, feminine gender

man, male, masculine gender

character (of a person), personality, disposition...

acute (illness)

individuality, personality, quirk...

ability, performance, efficiency

(distinction of) sex, gender

nature (of a person), disposition, temperament...

sexual (i.e. relating to biological sex), sexual (relations, attraction...

acidity, acidic

chronic (illness)

hasty, rash, rushed...

activity, active

the opposite sex, isomerism

willpower, guts, determination...

humanity, human nature

intelligence

reason, reasoning power, (one's) sense

potentiality, likelihood, possibility...

aptitude, aptness, suitability

same sex

disposition, temperament, temper...

neutrality (incl. chemical, electrical, etc.)...

wildness, wild nature, untamed nature...

sensitivity, sensitiveness, sense (of ...)

special characteristic, special quality, trait...

necessity

sensitivity, susceptibility

productivity