take no prisoners
to be very determined and not care about other people's feelings when trying to achieve something:
When Eric's anger is aroused, he takes no prisoners.
Thesaurus: synonyms and related words
Strength of will and determination
- alpha male
- bitter
- bloody-minded
- character
- determination
- dogged
- earnest
- fibre
- fight
- mettle
- militant
- obstinate
- perseverance
- pigheaded
- resolution
- resolve
- single-minded
- stamina
- staying power
- stick-to-it-iveness
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