Hadal
//ˈheɪdəl// adj
adj ·Rare ·Advanced level
Definitions
Adjective
- 1 Of or relating to the deepest parts of the ocean. not-comparable
Adjective
- 1 relating to the deepest parts of the ocean (below 6000 meters) wordnet
Etymology
From French hadal, from Hadès + -al. By surface analysis, had- + -al.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.