onlooker
0 antonyms and opposites of onlooker, grouped by meaning.
Noun — A spectator; someone looks on or watches, without becoming involved or participating.
We haven't recorded synonyms for onlooker yet. You can still read its full definition, where it comes from, or words that rhyme with it.
Etymology
From on + look + -er, probably from the verb look on, but compare with onlook.
Full origin of onlooker →