adjective · Hard SAT word

    Immutable

    changeless; not subject or susceptible to change or variation in form or quality or nature

    Immutable in a sentence

    The immutable laws of physics govern all matter in the universe.

    Synonyms for immutable

    • unchangeable
    • permanent
    • fixed

    Antonyms for immutable

    Practice immutable on real SAT questions

    Vocabulary like immutable 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.

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