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Added 9 October 2026

substantial

/səbˈstænʃəl/ adjective

Latin root: substantiālis Wiktionary

adjective Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about substantial at Wordnik → Where our words come from →

Of considerable importance, size, or worth.
won by a substantial margin
Of or relating to the real nature or essential elements of something.
a substantial argument
Having substance or capable of being treated as fact; not imaginary.
the substantial world

Origin

From Middle English substancial, substantiall, from Old French substanciel, substantiel and its etymon Latin substantiālis.

From Wiktionary, via Kaikki.org (CC BY-SA)

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