IPA: /ˌʌn.dɪˈnaɪd/
KK: /ʌndɪˈnaɪd/
Something that is accepted as true and not rejected or denied.
The evidence presented in court was undenied by the defendant.
Undenied → It is formed from "un-" (meaning not) and "denied" (from Latin "denegare", meaning to refuse or reject). The word "undenied" means not refused or rejected, implying acceptance or acknowledgment.
Think of 'not' ('un-') and 'refused' ('denied') — so undenied means something that has not been rejected.