substantiate Antonyms

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