concur (verb) concur: agree, approve
Sinonime: backstabber, betrayer, blabbermouth, canary, deep throat, double-crosser, fink, informant, sneak, snitch, source, squealer, stool pigeon, stoolie, tattler, tattletale, turncoat, whistle-blower
Antonime: argue,
differ,
disagree,
disapprove,
dispute,
object,
oppose,
reject