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plain Jane

1 American  

noun

Informal.

  1. a drab, unattractive, and generally uninteresting girl or woman.

plain-Jane 2 American  
[pleyn-jeyn] / ˈpleɪnˈdʒeɪn /
Or plain-jane

adjective

Informal.

  1. simple and modest; unadorned; basic.

    a plain-Jane car dressed up with leather upholstery.

Etymology

Origin of plain Jane1

First recorded in 1910–15

Origin of plain-Jane2

First recorded in 1935–40

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.