- 2Signification: heartlesscallous unnatural cold-blooded cruelunyielding uncharitable hardhearted unmerciful
- 3Signification: severeadamant austere callous cruelexacting harsh hard relentless
- 4Signification: cruelcallous unnatural cold-blooded unmercifulunyielding uncharitable hardhearted heartless
- 5Signification: shrewdcallous hard unsympathetic unsentimental
- 6Signification: insensitiveunfeeling hardened callous dullobtuse pachydermatous thick-skinned
- 7Signification: indifferentdetached callous apathetic disinterestedaloof listless lethargic numb
- 8Signification: savagemonstrous cruel pitiless heartlessbarbarous fierce callous inhuman
- 9Signification: behaviourcool aloof indifferent coldunfriendly callous frigid glacial
- 10Signification: characteristicnumb apathetic deadened callous anaesthetisedcold cool frigid dead
- 11Signification: hardenedhard indurate heartless inuredcold obdurate callous
- 12Signification: apatheticobtuse indifferent insensible unsusceptiblesluggish torpid callous
- 13Signification: unyieldingcallous firm hard hard-heartedhardened inexorable inflexible obdurate
- 14Signification: tougher or strongerinured toughened callousdisciplined trained hardened
- 15Signification: character traitshrewd callous unsentimental unsympathetic hard