Definition of undistinguished
: not distinguished: such asa : not marked by eminence, distinction, or quality a bland, undistinguished pop album an undistinguished careerb : not perceived as distinct : not differentiated The disease [syphilis] was first noticed in Europe at the end of the fifteenth century, though it may have existed before then undistinguished from leprosy. — Wayne Biddle
First Known Use of undistinguished
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