paper-thin

[ pey-per-thin ]
/ ˈpeɪ pərˈθɪn /

adjective

extremely thin: a paper-thin razor blade.
inadequate or unconvincing; flimsy: a paper-thin excuse.

Origin of paper-thin

First recorded in 1925–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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