conducive Antonyms

not helpful malefic injurious inferior infectious inefficient ineffectual ineffective incommode inauspicious inappropriate inadequate misspent muddle highly undesirable unhelpful unconducive noncausative noncausal nonconductive counterpunch aversive unprofitable unfavorable numerator improper ill deleterious deadly damaging cumbersome counteractive counter baneful bad auxiliary andiron ancillary destructive detrimental hurtful hopeless hindering heel hazardous harmful fruitless foul firedog ensuing