Synonyms of untrue in English:

untrue


See definition of untrue

adjective

1‘these suggestions are totally untrue’

SYNONYMS
false, untruthful, fabricated, made up, invented, concocted, trumped up
erroneous, in error, wrong, incorrect, inaccurate, inexact
flawed, specious, fallacious, unsound, unfounded, misguided, distorted, out, misleading
fictitious, fabulous, mythical, mythological
humorous economical with the truth
ANTONYMS

true, correct

2‘he was untrue to himself’

SYNONYMS
unfaithful, disloyal, faithless, false, false-hearted, treacherous, traitorous, perfidious, deceitful, deceiving, untrustworthy, duplicitous, double-dealing, two-faced, Janus-faced, insincere, unreliable, undependable, inconstant
adulterous
informal two-timing
ANTONYMS

true, faithful