Synonyms and Antonyms of alter ego
1
a person who has a strong liking for and trust in another
- over the years the state's other senator became his alter ego as well as his political ally
amigo, buddy, chum, compadre, comrade, confidant, confidante, crony, familiar, friend, intimate, mate [chiefly British], musketeer, pal
acquaintance
associate, cohort, colleague, companion, fellow, hearty, hobnobber, partner, peer, sport
blood brother, brother, main man, sister
abettor (also abetter), accomplice, ally, collaborator, confederate
pen pal
benefactor, supporter, sympathizer, well-wisher
friendly
2
something or someone that strongly resembles another
- the hero of the novel is clearly the author's alter ego, right down to his receding hairline and middle-aged paunch
carbon, carbon copy, clone, counterpart, doppelgänger (or doppelganger), double, duplicate, duplication, facsimile, fetch, image, likeness, look-alike, match, mirror image, picture, replica, ringer, spit, spitting image, twin
