IPA: /ɪˈlɔːdəbl/
KK: /ɪˈlɔːdəbl/
Not deserving praise or admiration; something that is not commendable.
His actions were considered illaudable by his peers, as they did not reflect good character.
Illaudable is formed from the prefix "il-" (meaning not) and the root "laudabilis" (from Latin, meaning praiseworthy). The word describes something that is not worthy of praise or commendation.
Think of 'not' ('il-') being combined with 'praiseworthy' ('laudabilis') to remember that 'illaudable' means something that is not deserving of praise.