apt
1 applicable, apposite, appropriate, apropos, befitting, correct, fit, fitting, germane, meet (archaic) pertinent, proper, relevant, seemly, suitable, timely, to the point, to the purpose
2 disposed, given, inclined, liable, likely, of a mind, prone, ready
3 astute, bright, clever, expert, gifted, ingenious, intelligent, prompt, quick, sharp, skilful, smart, talented, teachable
Antonyms
1 ill-fitted, ill-suited, ill-timed, improper, inapplicable, inapposite, inappropriate, infelicitous, inopportune, irrelevant, unsuitable, untimely
3 awkward, clumsy, dull, gauche, incompetent, inept, inexpert, maladroit, slow, stupid