Definition of inhuman
1a
: lacking pity, kindness, or mercy : savage
an inhuman tyrant
b
: cold, impersonal
his usual quiet, almost inhuman courtesy— F. Tennyson Jesse
c
: not worthy of or conforming to the needs of human beings
inhuman living conditions
2
: of or suggesting a nonhuman class of beings
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Merriam-Webster unabridged
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Time Traveler for inhuman
The first known use of inhuman was in the 15th century
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