IPA: /nɒnˈkɔɪtəl/
KK: /nɑnˈkɔɪtəl/
Not related to sexual intercourse.
The couple enjoyed a noncoital relationship that focused on emotional intimacy.
Noncoital → It is formed from "non-" (meaning not) and "coital" (from Latin "coitus", meaning sexual intercourse). The word "noncoital" refers to something that is not related to or does not involve sexual intercourse.
Think of 'non-' meaning 'not' and 'coital' relating to 'sexual intercourse' — so noncoital means not involving sexual intercourse.