a. (UN-1 7 b.)
1673. R. Head, Canting Acad., 89. Their speech is undisguisable.
1804. Southey, in Robberds, Mem. W. Taylor (1843), I. 501. Your language is as undisguisable as my face.
1862. Mrs. Oliphant, Last of Mortimers, IV. v. Blushing in the most violent undisguisable way.
