adv. [f. FRIGHTFUL + -LY2.] In a frightful manner; to a frightful degree.

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  † 1.  subjectively. In a manner indicating fright; timidly. Obs.

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1621.  Lady M. Wroth, Urania, 237. She, as if her enemy had been at hand, amazedly, and frightfully answered [etc.].

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c, Antid. Ath., II. xii. (1712), 82. Have so little Wit or Courage as to run away from a Snail, and very ruefully and frightfully to look back, as being afraid she would follow him.

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1674.  Brevint, Saul at Endor, 55. [He] cryed out frightfully, Who art thou?

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  2.  objectively.a. qualifying a vb.: Like a ‘fright’; hideously. Obs.

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1729.  Swift, The Journal of a Modern Lady, 48.

        Then to her Glass; and, ‘Betty, pray,
Don’t I look frightfully To-day?’

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1752.  Johnson, Rambler, No. 193, Jan. 21, ¶ 8. The Beauty remarks how frightfully she looks.

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  b.  To a frightful extent or degree. Often hyperbolically as a mere intensive with adjs. of unfavorable connotation. Cf. FRIGHTFUL 2.

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1817.  J. Scott, Paris Revis. (ed. 4), 350. Connecting one event with another, their reverses made one feel the place frightfully unsafe.

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1828.  Lady Granville, Lett., 22 Nov. (1894), II. 36. His thirst for knowledge is frightfully minute.

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1855.  Macaulay, Hist. Eng., IV. 252. His cheeks, always sallow, grew frightfully livid. Ibid., 275. His features were frightfully harsh.

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1870.  Dickens, E. Drood, ii. Good Heaven, Jack, you look frightfully ill!

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1880.  Mrs. Forrester, Roy & Viola, I. 65. Upon my word, we English are frightfully wanting in tact.

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