Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “insubstantial”

insubstantial

adjective uk   /ˌɪn.səbˈstæn.ʃəl/ /-ˈstɑːn-/ us  

insubstantial adjective (NOT ENOUGH)

not enough or not strong enough: an insubstantial meal insubstantial evidenceLight and weightlessOf little or less importance

insubstantial adjective (IMAGINARY)

literary not existing as a physical person or thing: She seemed somehow insubstantial - a shadow of a woman.True, real, false, and unreal
(Definition of insubstantial from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of insubstantial?
Add Cambridge dictionaries to your browser to your website

Definitions of “insubstantial” in other dictionaries

Word of the Day

bitter

a type of dark brown beer with a bitter taste

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More