The Collaborative International Dictionary
Unsexual
Unsexual \Un*sex"u*al\, a.
Not sexual; not proper or peculiar to one of the sexes.
--De
Quincey.
Wiktionary
unsexual
a. Not sexual.
Usage examples of "unsexual".
He watched her as she added water to the dried milk, looked at her naked body in a wholly unsexual way.