crueler or crueller; cruelest or cruellest
Definition of cruel
1
: disposed to inflict pain or suffering : devoid of humane feelings
a cruel tyrant has a cruel heart
2a
: causing or conducive to injury, grief, or pain
a cruel joke a cruel twist of fate
b
: unrelieved by leniency
cruel punishment
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Merriam-Webster unabridged
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Time Traveler for cruel
The first known use of cruel was in the 14th century
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