得体の知れない (えたいのしれない) Japanese meaning | KotomoraMeanings
1
expression, i-adjective
strange; unfamiliar; mysterious; suspicious
Used to describe something or someone whose true nature is unknown, often with a negative or uneasy nuance. Commonly modifies nouns like 人物, 物, 感じ.
彼女は得体の知れない不安に襲われた。
She was seized by a vague, unfamiliar anxiety.