Synonyms of unflagging in English:

unflagging


See US English definition of unflagging

See UK English definition of unflagging

See Spanish definition of inagotable

adjective

1‘an unflagging commitment to the ideals of peace’

SYNONYMS
tireless, persistent, dogged, tenacious, determined, resolute, staunch, single-minded, unremitting, unrelenting, unswerving, unfaltering, unfailing, unending, zealous
ANTONYMS

flagging, inconstant