IPA: /ˌʌndɪˈzɜːrvɪŋ/
KK: /ʌndɪˈzɜrvɪŋ/
Not worthy of something, such as praise or a reward.
He felt that he was undeserving of the award he received.
Undeserving → It is formed from "un-" (meaning not) and "deserving" (from the Old French *deservir*, meaning to earn or merit). The word "undeserving" means not worthy of earning or merit.
Think of 'not' ('un-') being added to 'earning' or 'meriting' something — that's why undeserving means not worthy of earning.