Entry: unlibidinous (adj.)
The opposite or negation of libidinous (n): Of persons, their lives,
actions, desires: Given to, full of, or characterized by lust or
lewdness; lustful, lecherous, lewd.
1667 Milton Paradise Lost v. 449 But in those hearts Love unlibidinous reign'd.
SNOOT score: 1.
You’re welcome to try and find a SNOOTy way to use this word, but it’s
beyond my imagination at the present. I mean, sure, it sounds a little
more impressive than unhorny, but how much of an improvement can one
Source: Oxford English Dictionary