Synonyms of undoubted in English:

undoubted


See definition of undoubted

adjective

1‘there has been an undoubted improvement in VDU design’

SYNONYMS
undisputed, uncontested, unchallenged, unquestioned, not in question, unquestionable, indubitable, not in doubt, incontrovertible, irrefutable, incontestable, unequivocal, sure, certain, obvious, evident, unmistakable, transparent, manifest, patent
definite, confirmed, accepted, acknowledged, recognized, positive, clear-cut
ANTONYMS

doubtful, possible