脆弱的,无实体的,非实质的
Insubstantial \In`sub*stan"tial\, a. Unsubstantial; not real or strong. ``Insubstantial pageant.'' [R.] --Shak.
insubstantial adj 1: lacking material form or substance; unreal; "as insubstantial as a dream"; "an insubstantial mirage on the horizon" [syn: {unsubstantial}, {unreal}] [ant: {substantial}] 2: lacking in nutritive value; "the jejune diets of the very poor" [syn: {jejune}]