li ‧ ar /ˈlaɪə $ -ər/ BrE AmE noun [countable]
[ Word Family: noun : ↑ liar , ↑ lie ; verb : lie; adjective : lying]
someone who deliberately says things which are not true:
Are you calling me a liar?
• • •
COLLOCATIONS
■ adjectives
▪ a good liar ( also an accomplished liar formal ) (=someone who tells believable lies)
He's an accomplished liar who lies as easily as other men breathe.
▪ a terrible/poor/rotten liar (=who does not tell believable lies)
You're a rotten liar, Julia. What really happened?
▪ a big liar spoken (=someone who tells big lies)
You're such a big liar!
▪ a habitual/chronic/inveterate liar formal (=who lies a lot)
Drug users are often habitual liars trying to cover up their addiction.
▪ a congenital/pathological/compulsive liar formal (=who tells lies because it is part of their personality to do so)
He called her a congenital liar who would say anything to stay out of trouble.
■ verbs
▪ call somebody a liar (=say that someone is lying)
Are you calling my mother a liar?
▪ accuse somebody of being a liar
He accused me of being a liar.