- dark; gloomy; obscure.
Also te·neb·ri·ous [tuh-neb-ree-uh s] /təˈnɛb ri əs/.
Origin of tenebrous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for tenebrious
- gloomy, shadowy, or dark
C15: from Latin tenebrōsus from tenebrae darkness
Word Origin and History for tenebrious
"full of darkness," early 15c., from Old French tenebreus (11c.), from Latin tenebrosus, from tenebrae "darkness" (see temerity).
Online Etymology Dictionary, © 2010 Douglas Harper