Meaning of the word "fly in the face of" in English

What does "fly in the face of" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

fly in the face of

US /flaɪ ɪn ðə feɪs əv/
UK /flaɪ ɪn ðə feɪs əv/

Idiom

to be in direct opposition to something; to contradict or defy something openly

Example:
His actions fly in the face of everything he claims to believe.
The new policy seems to fly in the face of common sense.