unerotic
/juːˈnɛrɒtɪk/Definitions
1. adjective
lacking or uncharacterized by sexual appeal or attractiveness
“The artist’s unerotic depiction of the historical scene was criticized by art critics.”
2. adjective
uninspiring or lacking a romantic or sensual quality
“The unerotic atmosphere of the old hotel made it unappealing to honeymooners.”