IPA: /rɪˈmɔːrsfəl/
KK: /rɪˈmɔrsfəl/
The feeling of deep regret or guilt for a wrong committed.
After realizing the impact of his actions, he was filled with remorsefulness.
Remorsefulness → It is formed from "re-" (meaning again) and "mordere" (meaning to bite) combined with the suffix "-ful" (meaning full of) and the suffix "-ness" (meaning the state of being). The word describes the state of being full of a biting regret or guilt about past actions.
Think of feeling 'bitten' by guilt ('mordere') again ('re-') — that's what remorsefulness means, the state of being full of regret.