Thesaurus
insubstantial
adjective
Synonyms and Antonyms of INSUBSTANTIAL
1
being of a material lacking in sturdiness or substance <an insubstantial carton that could not possibly stand up during long-distance shipping>
Antonyms sturdy, substantial
2
not composed of matter <energy is insubstantial>
Synonyms bodiless, ethereal, formless, incorporeal, insubstantial, nonmaterial, nonphysical, spiritual, unbodied, unsubstantial
Related Words metaphysical, psychic (also psychical), supernatural; impalpable, insensible, intangible, invisible; airy, diaphanous, gaseous, gossamery, tenuous, thin, vaporous, wispish
Near Antonyms animal, carnal, fleshly; detectable, discernible (also discernable), noticeable, observable, palpable, sensible, tangible, visible; bulky, heavy, massive, solid
Seen & Heard
What made you want to look up insubstantial? Please tell us where you read or heard it (including the quote, if possible).