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insubstantial

adjective

Latin root: insubstantiālis Wiktionary

adjective Definition from Wiktionary (CC BY-SA). More about insubstantial at Wordnik → Where our words come from →

  1. Lacking substance; not real or strong.
    The bridge was insubstantial and would not safely carry a car.

Origin

Probably from Middle French insubstantiel, from Latin insubstantiālis, from in- + substantiālis. By surface analysis, in- + substantial.

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