Synonyms of mythomaniac

1 Syllable

foul, mean, base

2 Syllables

disloyal, crooked, venal, recreant, corrupt, devious, wicked, forsworn, lying, canting, faithless

3 Syllables

traitorous, deceitful, villainous, treacherous, two-faced, misleading, perjured, malicious, rascally, perfidious, scoundrelly, beguiling, unfaithful, deceiving, deluding

4 Syllables

untrustworthy, delusive, underhanded, unscrupulous, double-dealing, duplicitous, falsehearted, malevolent, deceptive, renegade, treasonable, apostate

5 Syllables

dishonorable