counteractive Synonyms

reactionism opposing opposed offsetting nullifying neutralizer neutralizing negative medicine invalidating hostile disavowing opposite preventive agin countermeasure unfavorable resistant repugnant reparation remedy relief rejecting redress prophylactic detrimental denying assistance antiphlogistic antipathetic antidote antidotal anti antagonistic antacid annulling aid adverse checking clashing cure curative countervailing counteraction counter corrective contrary contradictory conflicting compensatory