adjective
Synonyms: invincible 1, impregnable, inconquerable, indomitable, inexpugnable, invulnerable, unassailable, unbeatable, unconquerable
Antonyms: defeatable
adjective
Synonyms: invincible 1, impregnable, inconquerable, indomitable, inexpugnable, invulnerable, unassailable, unbeatable, unconquerable
Antonyms: defeatable
Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003