a. [f. FRIGHT sb. + -SOME.] a. Causing fright; frightful. b. Feeling fright, full of fear.

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c. 1817.  Hogg, Tales & Sk., II. 94–5. How lonely and frightsome it would be for her to be left by herself, in a place where such foul murders had lately been perpetrated, and where, as was reported, the ghost of the deceased had already been seen.

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1827.  Carlyle, German Romance, I. 306. Edwald and Froda had their own almost frightsome thoughts on the matter.

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