substantiate Antonyms

discuss options negate refute rebut oppose invalidate gainsay falsify evert disprove blow out of the water collaborate debunk develop an agreement defuse a conflict consider consequences clarify expectations brainstorm solutions assess the situation address concerns acknowledge feelings call into question disfavor disembody discredit compromise challenge cancel break blackball belie assume arbitrate annul conciliate confound confute discourage disclaim disavow disapprove deny denounce demolish controvert contradict abrogate