Synonyms and Antonyms of booster

  1. a person who actively supports or favors a cause <rah-rah boosters for the sports team will be attending the game and carrying large signs> Synonyms advocate, advocator, apostle, backer, exponent, champion, expounder, espouser, friend, gospeler (or gospeller), herald, hierophant, high priest, paladin, promoter, proponent, protagonist, supporter, true believer, tub-thumper, white knightRelated Words loyalist, partisan (also partizan), stalwart; adherent, cohort, disciple, follower; interpreter; applauder, cheerleader, encourager, fellow travelerNear Antonyms enemy, foe, rival; belittler, critic, faultfinderAntonyms adversary, antagonist, opponent

Learn More about booster

Seen and Heard

What made you want to look up booster? Please tell us where you read or heard it (including the quote, if possible).