Without excuse; having no valid justification or reason; unjustifiable or inexcusable.
From excuse + -less (Old English -leas), meaning 'without.' This Germanic suffix construction is simpler than the Latinate 'inexcusable,' emphasizing complete absence.
Excuseless actions are rare—even terrible deeds can often be partially explained by trauma, circumstances, or psychology, which is why true excuselessness is reserved for only the most deliberately cruel acts.
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