insubstantial

Definition of Insubstantial in English :

1. insubstantial, unreal, unsubstantial

lacking material form or substance; unreal

Example Sentences:
'as insubstantial as a dream'
'an insubstantial mirage on the horizon'

2. insubstantial, jejune

lacking in nutritive value

Example Sentences:
'the jejune diets of the very poor'

WordNet Lexical Database for English. Princeton University. 2010.

Insubstantial

adjective

1.

not substantial; flimsy, tenuous, or slight

2.

imaginary; unreal

adjective

not substantial

; specif.,

a.

not real; imaginary

b.

not solid or firm; weak or flimsy

adj.

1. Not firm or solid; weak or flimsy: a shed made of insubstantial materials.

2. Very small or negligible, as in importance, size, or amount: an insubstantial volume of traffic.

3. Lacking or appearing to lack substance or reality: "the insubstantial vapor of an autumn field" (Loren Eiseley).