Synonyms of foreign in English:

foreign


See US English definition of foreign

See UK English definition of foreign

See Spanish definition of extranjero

adjective

1‘foreign branches of UK banks’

SYNONYMS
overseas, distant, remote, far off, far flung, external, outside
alien, non-native, adventitious
ANTONYMS

domestic

2‘the concept is very foreign to us Westerners’

SYNONYMS
unfamiliar, unknown, unheard of, strange, alien, exotic, outlandish, odd, peculiar, curious, bizarre, weird, queer, funny
novel, new
ANTONYMS

familiar

3‘this matter is altogether foreign to the affair in hand’

SYNONYMS
irrelevant, not pertinent, inappropriate, inapposite, extraneous, unrelated, unconnected
outside, distant from, remote from, disconnected from, different from
rare extrinsic
ANTONYMS

relevant