adjective · Hard SAT word

    Insubstantial

    unreal; lacking material form or substance; unreal

    Insubstantial in a sentence

    The insubstantial evidence was insufficient to convict the defendant.

    Synonyms for insubstantial

    Antonyms for insubstantial

    Practice insubstantial on real SAT questions

    Vocabulary like insubstantial appears on the Digital SAT in Words-in-Context questions, where you choose the word that fits a passage's meaning and tone. You can also drill this word with vocabulary flashcards.

    Related SAT vocabulary

    SAT® is a trademark registered by the College Board, which is not affiliated with, and does not endorse, this product.