not know the first thing about sth
to know nothing about a subject:
I'm afraid I don't know the first thing about car engines.
Thesaurus: synonyms and related words
Unaware
- be in the dark idiom
- be on another planet idiom
- benighted
- blind
- blind spot
- blissful
- fail
- faint
- ignorance is bliss idiom
- ignorant
- ill-informed
- illiterate
- in blissful ignorance idiom
- lost
- unbeknownst
- unconscious
- uneducated
- unfamiliar
- unknowing
- unnoticed
See more results »