Synonyms of negative

1 Syllable
pic, nope, con, weak, nay, less, null, pix
2 Syllables
deny, gainsay, impugn, belying, belie, balkier, against, anti, naysaying, rebut, scotching, gainsaid, gainsaying, photo, nuller, zinging, downbeat, kodak, vetoes, balky, denied, scotched, denying, denials, minus, x-out, tarring, impugns, belied, tarred, closeup, pinup, zinged, denial, denies, gloomy
3 Syllables
circumduct, disannul, recusant, microfilm, disproved, opposing, dissentient, redressed, rebutting, traversals, traversal, disconfirm, microfilms, wrongheaded, unwilling, noncompliant, impugned, photostat, jaundiced, photograph, annulling, dissenting, impugning, nullifying, refusing, rejecting, resisting, disavow, cynical, disprove, contradict, ungrounded, polaroid, countercheck, disproving, defeatist, negating, rebutted, adverse, close-up, contrary, removed, repugnant, negated, colorless, negate, counteract
4 Syllables
resistive, counteracting, unhopeful, pessimistic, abrogating, contravening, disallowing, disavowing, neutralizing, detrimental, controversion, renegement, disconfirming, counteracted, contradicted, disavowed, neutralized, nugatory, privative, contradicting, nonexistent, unsanctioned, negativing, negatived, kodachrome
5 Syllables
unenthusiastic, uninterested, antagonistic, declinatory, unfavorable, invalidating, invalidated, counteractive, negativistic, disinterested, invalidate
6 Syllables
unaffirmative