The Collaborative International Dictionary
Inacquaintance
Inacquaintance \In`ac*quaint"ance\, a.
Lack of acquaintance.
--Good.
Wiktionary
inacquaintance
n. Lack of acquaintance.
Usage examples of "inacquaintance".
With respect to the latter, it is a profound mistake, founded on inacquaintance with the manners and the spirit of manners prevalent amongst these imperfectly civilised nations.