pitiless.

Showing no pity or mercy toward suffering.

Use it for

Words that belong together

• pitiless cruelty
• pitiless judgement

On the page

The captain's pitiless decision left the injured crew behind.

Usage notes

Primary category: literary / elevated general. Forms: Comparative more pitiless; superlative most pitiless when comparison is meaningful. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Commonness: moderately common.