mendacious

1 ENTRIES FOUND:
mendacious /mɛnˈdeɪʃəs/ adjective
mendacious
/mɛnˈdeɪʃəs/
adjective
Britannica Dictionary definition of MENDACIOUS
[more mendacious; most mendacious] formal
1 
: not honest : likely to tell lies
2 
: based on lies

— mendaciously

adverb

— mendaciousness

noun [noncount]