The term tenebrous is often deployed to evoke a sense of profound darkness and mystery—whether describing physical spaces or abstract moods. Writers use it to paint gloomy settings like shadowed recesses in halls ([1]) or eerie, overgrown groves ([2]) that seem to swallow light, while also extending its reach to convey somber historical legacies or troubled inner lives, as when a character’s past or soul is depicted as dark and foreboding ([3], [4]). In this way, tenebrous enriches narratives by imparting both literal and metaphorical layers of gloom, suggesting environments and experiences steeped in obscure, almost palpable melancholy ([5], [6]).