IPA: /rɪˈmɔːsləs/
KK: /rɪˈmɔrsləs/
Showing no pity or compassion; being harsh and unyielding.
The remorseless storm caused widespread destruction in the town.
Comparative: more remorseless
Superlative: most remorseless
Remorseless → It is formed from "re-" (meaning again) and "mors" (from Latin "mors", meaning death) combined with the suffix "-less" (meaning without). The word describes a state of being without remorse or guilt, as if death or the consequences of actions do not affect one’s conscience.
Think of being 'without' ('-less') feelings of guilt or regret ('mors' relates to death) — that's why 'remorseless' means lacking remorse.