The adjective devious means someone who is lying and untruthful and likes to carry secrets.

Synonyms are dishonest, sneaky, deceitful, or sly.

The word origins from Latin (1590s) devius meaning “out of the way, remote, off the main road”. It comes from de meaning “off” plus via meaning “way, road”. It is originally in the Latin literal sense. The figurative sense of “deceitful” is first recorded in 1630s.

The magician was accused of using devious tricks to deceive the audience.

He is a disrespectful and devious politician.

Their family is known for their devious characters.