Liberal Dictionary English Dictionary
adjective
- not substantial or real; lacking substance: an insubstantial world of dreams.
- not solid or firm; weak; flimsy.
- not substantial in amount or size; inconsiderable: an insubstantial sum.
adjective
- not substantial; flimsy, tenuous, or slight
- imaginary; unreal
c.1600, from Medieval Latin insubstantialis, from in- “not” (see in- (1)) + substantialis (see substantial). Related: Insubstantially.