adjective · Hard SAT word

    Assiduous

    diligent; marked by care and persistent effort

    Assiduous in a sentence

    Her assiduous attention to detail resulted in a perfect project.

    Synonyms for assiduous

    Antonyms for assiduous

    • lazy
    • careless
    • negligent

    Practice assiduous on real SAT questions

    Vocabulary like assiduous 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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