Entry Word: unsubstantial

Function: adjective

Meaning: 1 not composed of matter <as thin and unsubstantial as the wind> — see immaterial 1
2 being of a material lacking in sturdiness or substance <unsubstantial wisps of lace> — see flimsy 1
3 lacking bodily strength <an unsubstantial child who was unfit to play sports of any kind> — see weak 1