LOOKER-ON Antonyms There are 6 antonyms of the word looker-on. (opposite meanings)Did you mean?Definition of LOOKER-ONSynonyms of LOOKER-ONBest Opposite Words For LOOKER-ONTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1audiencenounn2obserververb, nounv, n3participantnounn4spectatornounn5viewerverb, nounv, n6witnessverb, nounv, n Alternatives for AUDIENCE Words (16)crowdspectatorsassemblageassemblyattendancegatheringmultiplicitypublicturnoutviewerslistenersonlookersconsultationhearinginterviewlistenershipOpposite words for audience Alternatives for OBSERVER Words (8)beholderonlookerspectatorviewerwatchercommentatorperceiverpercipientOpposite words for observer Alternatives for PARTICIPANT Words (19)playerentrantpartakeraffiliateallyassociateattendeecandidatecollaboratorcolleaguecompetitorcontendercontestantcontributordelegatememberpartnerrepresentativeparticipatorOpposite words for participant Alternatives for SPECTATOR Words (8)observerviewerwatcherwitnessonlookeraudiencecrowdlookerPhrases (1)spectator pumpOpposite words for spectator Alternatives for VIEWER Words (9)spectatorwatcherwitnessaudiencebeholderbystanderobserveronlookerlookerOpposite words for viewer Alternatives for WITNESS Words (12)attestantattestatorattestorcertifyfindinformantlookerseespectatorviewerwatcherwitnesserOpposite words for witness