• Adjective

    requiring much work, exertion, or perseverance
    a laborious undertaking.
    characterized by or requiring extreme care and much attention to detail
    laborious research.
    characterized by or exhibiting excessive effort, dullness, and lack of spontaneity; labored
    a strained, laborious plot.
    given to or diligent in work
    a careful, laborious craftsman.

    Antonyms

    adjective
    easy , effortless , facile , simple , trivial , idle , lackadaisical , lazy , reticent

    Synonyms

    adjective
    arduous , backbreaking , burdensome , effortful , fatiguing , forced , heavy , herculean * , labored , onerous , operose , ponderous , rough go , stiff , strained , strenuous , tiresome , toilsome , tough , tough job , wearing , wearisome , wicked * , active , assiduous , diligent , indefatigable , industrious , painstaking , persevering , sedulous , tireless , unflagging , demanding , difficult , exacting , exigent , formidable , hard , oppressive , rigorous , rough , severe , taxing , trying , weighty , serious , tall , uphill , hardworking
    Lấy từ « http://tratu.soha.vn/dict/en_en/Laborious »

    tác giả


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