I. adjective
Synonyms: adverse 2, detrimental, unfavorable
II. verb
1.
Synonyms: veto , kill, ||nix, non-placet
2.
Synonyms: deny 4, contradict, contravene, cross, disaffirm, gainsay, impugn, negate, traverse
Antonyms: affirm
3.
Synonyms: neutralize , annul, cancel (out), counteract, countercheck, frustrate, negate, redress
Related Word: abrogate, invalidate, nullify