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> Synonyms cobwebby, filmy, frothy, gauzy, gossamer, gossamery, flimsy, sleazy, unsubstantialRelated Words dainty, delicate, fine; feeble, fragile, frail; diaphanous, sheer, transparentNear Antonyms durable, knockabout, lasting, tough; coarse, heavy, rough, rudeAntonyms sturdy, substantial
2 not composed of matter <energy is insubstantial> Synonyms bodiless, ethereal, formless, incorporeal, immaterial, nonmaterial, nonphysical, spiritual, unbodied, unsubstantialRelated Words metaphysical, psychic (also psychical), supernatural; impalpable, insensible, intangible, invisible; airy, diaphanous, gaseous, gossamery, tenuous, thin, vaporous, wispishNear Antonyms animal, carnal, fleshly; detectable, discernible (also discernable), noticeable, observable, palpable, sensible, tangible, visible; bulky, heavy, massive, solidAntonyms bodily, corporeal, material, physical, substantial
Seen and Heard
What made you want to look up insubstantial? Please tell us where you read or heard it (including the quote, if possible).