solely

Synonyms

alone, independently, single-handed, single-handedly, singly, unaided, unassisted;

Near Antonyms

collectively, conjointly, cooperatively, hand in glove (or hand and glove), hand in hand, jointly, mutually, together;

en masse;

Related Words

individually, separately;

solo;

Phrases

by one's own bootstraps, on one's own, on one's own hook, on one's own initiative;