cruelest
Least showing mercy
Cruelest is the superlative form of cruel—the most deliberately indifferent to or pleased by another's suffering.
It was the cruelest thing anyone had ever said to her.
Nature's cruelest irony is that we forget what we most want to remember.
The two-syllable spelling cruelest is standard; cruellest appears in British English.
Without compassion or emotion
- callousCruelly insensitive to others
- heartlessLacking pity or mercy
- indifferentLacking interest or concern
- insensitiveUnaware of others' emotions
unsympathetic · uncompassionate · pitiless · stony · icy · frigid · aloof · detached
Fierce and untamed
- ferociousExtremely violent or aggressive
- barbaricSavagely cruel, uncivilized
- violentInvolving physical force
- aggressiveHostile and confrontational
bloodthirsty · fierce · murderous · bestial · brutish · gruesome · destructive · monstrous
Lacking any compassion
- unrelentingRefusing to let up
- unsparingShowing no leniency
- unforgivingShowing no leniency
- implacableIncapable of being pacified
inexorable · relentless · remorseless · unyielding · stern · harsh · hard · inflexible
unfeeling
Without compassion or emotion
- callousCruelly insensitive to others
- heartlessLacking pity or mercy
- indifferentLacking interest or concern
insensitive · unsympathetic · uncompassionate · pitiless · stony · icy · frigid · aloof · detached · apathetic
savage
Fierce and untamed
- ferociousExtremely violent or aggressive
- barbaricSavagely cruel, uncivilized
- violentInvolving physical force
aggressive · bloodthirsty · fierce · murderous · bestial · brutish · gruesome · destructive · monstrous · atrocious
ruthless
Lacking any compassion
- unrelentingRefusing to let up
- unsparingShowing no leniency
- unforgivingShowing no leniency
implacable · inexorable · relentless · remorseless · unyielding · stern · harsh · hard · inflexible · unbending
spiteful
Wanting to hurt others
- vindictiveSeeking harm from resentment
- malevolentHarboring ill will
- meanAverage, or spiteful
nasty · hostile · vicious · venomous · hateful · wicked · evil · sinister · malignant · sadistic