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Synonyms

unseemly

American  
[uhn-seem-lee] / ʌnˈsim li /

adjective

unseemlier, unseemliest
  1. not seemly; not in keeping with established standards of taste or proper form; unbecoming or indecorous in appearance, speech, conduct, etc..

    an unseemly act; unseemly behavior.

    Synonyms:
    inappropriate, unbefitting
  2. inappropriate for time or place.

    an unseemly hour.


adverb

  1. in an unseemly manner.

unseemly British  
/ ʌnˈsiːmlɪ /

adjective

  1. not in good style or taste; unbecoming

  2. obsolete unattractive

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adverb

  1. rare in an unseemly manner

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Synonym Usage

See improper.

Other Word Forms

Etymology

Origin of unseemly

Middle English word dating back to 1250–1300; see origin at un- 1, seemly

Explanation

Something that is inappropriate or unacceptable behavior is unseemly. It's a gentler, somewhat nicer word for "inappropriate" than its synonyms, the "in" words: "indecent, indecorous, indelicate, inelegant, inept" — well, you get the idea. Knowing that the "un-" prefix turns a word into its opposite, you'll see that unseemly means "not seemly." Let's look at that word (which is related to our verb seem), because it carries the real meaning. Seemly goes back to around 1200, to the Old Norse word soemr, "fitting, becoming." The negative "un-" was added in the early 14th century to denote the opposite meaning. "Seems" to make sense, doesn’t it?

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Vocabulary lists containing unseemly

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Written by Mr. Carney and Peter McDonald, who also contributes a funny supporting turn as one of Rick’s band mates, it stumbles into a bog of bitterness, quarreling and unseemly behavior.

From The Wall Street Journal • May 28, 2026

Green co-leader Ross Greer accused opponents of "nasty and unseemly" attacks.

From BBC • May 13, 2026

His most “persistent hater,” the pompous moralist Cato the Censor, railed at Scipio’s unseemly pride and alleged corruption.

From The Wall Street Journal • Nov. 16, 2025

After watching clips of both of these incidents, it’s clear they were unseemly.

From Slate • Sep. 17, 2025

“Oh, Beth, he’s sent you...” began Amy, gesticulating with unseemly energy, but she got no further, for Jo quenched her by slamming down the window.

From "Little Women" by Louisa May Alcott

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