spot–on

1 being in agreement with the truth or a fact or a standard for an inside mount for window blinds, your measurements had better be spot-on Synonyms accurate, bang on [chiefly British], dead-on, exact, good, on-target, precise, proper, right, so, spot-on, true, veraciousRelated Words legitimate, logical, sound, valid; errorless, faultless, flawless, impeccable, inerrant, infallible, letter-perfect, perfect; rigorous, strict, stringentNear Antonyms defective, faulty, flawed, imperfectAntonyms false, improper, inaccurate, incorrect, inexact, off, untrue, wrong

2 meeting the highest standard of accuracy a spot-on prediction of the movie's gross on its opening weekend Synonyms accurate, close, delicate, exact, fine, hairline, mathematical, pinpoint, refined, rigorous, spot-onRelated Words correct, right, strict, true; definite, definitive; nice, subtle; careful, fastidious, finical, finicky, meticulousNear Antonyms approximate, round; false, incorrect, untrue, wrong; careless, loose; indefinite, unclear, vague; doubtful, dubious, questionable, unreliable, untrustworthyAntonyms coarse, imprecise, inaccurate, inexact, rough