one-dimensional

[ wuhn-di-men-shuh-nl ]
/ ˈwʌn dɪˈmɛn ʃə nl /

adjective

having one dimension only.
having no depth or scope: a novel with one-dimensional characters.

Origin of one-dimensional

First recorded in 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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