Definition of tenebrous in English:

tenebrous

adjective

literary
  • Dark; shadowy or obscure.

    ‘the tenebrous spiral staircase of the self’
    • ‘The crew bunks in a decaying hotel with infinitely unfurling tenebrous corridors.’
    • ‘We have grown to expect people to be tenebrous, to be evil.’
    • ‘I remember how I liked to feel his presence around me, to hear that deep, tenebrous voice.’
    • ‘These girls were kept in tenebrous seclusion, suspended between life and death, until marriage.’
    • ‘His greatest scenes happen at night, and the characters in these tenebrous situations are seen, like specters, emerging from shadows.’
    indistinct, faint, vague, ill-defined, unclear, blurred, blurry, misty, hazy, foggy, veiled, cloudy, clouded, nebulous, fuzzy
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Origin

Late Middle English: via Old French from Latin tenebrosus, from tenebrae darkness.

Pronunciation:

tenebrous

/ˈtɛnɪbrəs/