unsubstantial Meaning, Definition & Usage

  1. adjective lacking material form or substance; unreal
    unreal; insubstantial.
    • as insubstantial as a dream
    • an insubstantial mirage on the horizon

WordNet


Un`sub*stan"tial adjective
Definitions
  1. Lacking in matter or substance; visionary; chimerical.

Webster 1913