- a stranger to
- be ignorant of
- be insensible of
- buzhi
- dk don't know
- have no idea / don’t know
- have not the least idea of
- hear nothing of
- i have no clue,i dont know,i have no idea
- i have no clue,i don’t know,i have no idea
- ignorance
- ignorantof
- i’ve no idea.= i don’t know
- je ne sais pas
- mudm
- peace of mind from the minute you buy
- unconsciousness
- unkown
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