encourager Antonyms

time-wasting person underminer thwarter suppressor stopper stemmer staller restrainer preventer obstructionist obstructer villain wrecker obstructor combatants timewaster time-waster deflator saboteur dampener filibusterer blocker aggravator silencer limiter knocker inhibitor container constrainer chastiser chastener baffler attacker arrester antagonist annoyer afflicter crusher curtailer dasher hinderer griever gagger forestaller disturber dissuader discourager depressor demolisher delayer