Congregated, past participle of congregate. Synonyms in the same form.
Flock
flocked, thronged, crowded, massed, herded, leagued, mustered, congressed, prest, concurred, forgathered, begathered, swarmed, clustered
Gather
gathered, assembled, collected, amassed, concentrated, aggregated, compacted, convened
All synonyms for congregate →