a. Obs. rare1. [f. TROUBLE v. + -ABLE.] Troublesome, grievous.

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c. 1374.  Chaucer, Boeth., IV. met. ii. 92 (Camb. MS.). Trowblable [Add. MS. troublable] Ire þat arayseth in hym the floodes of trwblynges tormentith … hyr thowht.

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