indecorous

UK: /ɪnˈdɛkərəs/ US: (in dek′ər əs, in′di kôr′əs, -kōr′-)

WordReference Random House Unabridged Dictionary of American English © 2025

in•dec•o•rous  (in dek′ər əs, in′di kôr′əs, -kōr′-), adj. 

1. not decorous;
   violating generally accepted standards of good taste or propriety;
   unseemly.

• Latin indecōrus. See in-³, decorous
• 1670–80

in•dec′o•rous•ly, adv. 
in•dec′o•rous•ness, n. 
Synonyms

indecent, improper, inappropriate.

Collins Concise English Dictionary © HarperCollins Publishers::

indecorous / ɪnˈdɛkərəs/ adjective

1. improper or ungraceful; unseemly

inˈdecorously adverb