IPA: /ˈsɛksləs/
KK: /sɛksləs/
Not having sexual characteristics or interest; often used to describe something that is neutral or lacks sexual appeal.
The characters in the story were portrayed as sexless, focusing on their personalities rather than their romantic relationships.
Sexless → It is formed from "sex" (from Latin "sexus", meaning gender or sex) and "-less" (meaning without). The word "sexless" means without gender or sex.
Think of 'sex' as referring to gender and '-less' meaning without — so sexless describes something that lacks gender.