Dictionary.com

mentally ill

Save This Word!

adjective

having a mental illness.

noun (used with a plural verb)

Usually the mentally ill . mentally ill persons collectively.

QUIZZES

QUIZ YOURSELF ON AFFECT VS. EFFECT!

In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.

Origin of mentally ill

First recorded in 1935–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Learn A New Word Right Now!