hard

• adj.
  • not easy; requiring great physical or mental effort to accomplish or comprehend or endure

    "why is it so hard for you to keep a secret?"

    同义词： difficult

  • dispassionate

    "took a hard look"; "a hard bargainer"

  • resisting weight or pressure
  • very strong or vigorous

    "a hard left to the chin"

    同义词： knockout severe

  • characterized by toilsome effort to the point of exhaustion; especially physical effort

    "hard labor"

    同义词： arduous backbreaking grueling gruelling heavy laborious operose punishing toilsome

  • produced without vibration of the vocal cords

    同义词： unvoiced voiceless surd

  • (of light) transmitted directly from a pointed light source

    同义词： concentrated

  • (of speech sounds); produced with the back of the tongue raised toward or touching the velum

    "Russian distinguished between hard consonants and palatalized or soft consonants"

  • given to excessive indulgence of bodily appetites especially for intoxicating liquors

    "a hard drinker"

    同义词： intemperate heavy

  • being distilled rather than fermented; having a high alcoholic content

    "hard liquor"

    同义词： strong

  • unfortunate or hard to bear

    "had hard luck"

    同义词： tough

  • dried out

    "hard dry rolls left over from the day before"

• adv.
  • with effort or force or vigor

    "the team played hard"; "worked hard all day"; "pressed hard on the lever"; "hit the ball hard"; "slammed the door hard"

  • with firmness

    "held hard to the railing"

    同义词： firmly

  • earnestly or intently

    "thought hard about it"; "stared hard at the accused"

  • causing great damage or hardship

    "industries hit hard by the depression"

    同义词： severely

  • slowly and with difficulty

    "prejudices die hard"

  • indulging excessively

    同义词： heavily intemperately

  • into a solid condition

    "concrete that sets hard within a few hours"

  • very near or close in space or time

    "it stands hard by the railroad tracks"; "they were hard on his heels"; "a strike followed hard upon the plant's opening"

  • with pain or distress or bitterness

    "he took the rejection very hard"

  • to the full extent possible; all the way

    "hard alee"; "the ship went hard astern"; "swung the wheel hard left"

以上来源于: WordNet