illusory

adjective

il·​lu·​so·​ry i-ˈlü-sə-rē  -ˈlü-zə- 

-ˈlüs-,

-ˈlüz-

: based on or producing illusion : deceptive

illusory hopes

illusorily

i-ˈlü-sə-rə-lē 

-ˈlü-zə-;

-ˈlüs-

-ˈlüz-

adverb

illusoriness

i-ˈlü-sə-rē-nəs 

-ˈlü-zə-;

-ˈlüs-

-ˈlüz-

noun

Choose the Right Synonym for illusory

apparent, illusory, seeming, ostensible mean not actually being what appearance indicates.

apparent suggests appearance to unaided senses that may or may not be borne out by more rigorous examination or greater knowledge.

the apparent cause of the accident

illusory implies a false impression based on deceptive resemblance or faulty observation, or influenced by emotions that prevent a clear view.

an illusory sense of security

seeming implies a character in the thing observed that gives it the appearance, sometimes through intent, of something else.

the seeming simplicity of the story

ostensible suggests a discrepancy between an openly declared or naturally implied aim or reason and the true one.

the ostensible reason for their visit

Examples of illusory in a Sentence

an illusory sense of security

Recent Examples on the Web

Fazio has grappled with that challenge while studying the illusory truth effect: how repeating something that is false will make a person more likely to believe it. —Bykai Kupferschmidt, science.org, 31 Oct. 2024

The auction prices and the professorships and even the art hanging on the wall by now seemed illusory. —Joseph Bien-Kahn, Rolling Stone, 3 Nov. 2024

Like the existence of the three candidates themselves, however, the planets’ super-Mars statuses could be illusory. —John Wenz, Scientific American, 4 Oct. 2024

In this case, the bendy space-time fabric that surrounds us would be illusory, and the quantum particles on the boundary would be the real stuff of existence. —Charlie Wood, Quanta Magazine, 25 Sep. 2024

Word History

First Known Use

circa 1631, in the meaning defined above

Kids Definition

illusory

adjective

il·​lu·​so·​ry il-ˈüs-(ə-)rē 

-ˈüz-

: based on or producing illusion : deceptive

an illusory hope

Medical Definition

illusory

adjective

il·​lu·​so·​ry il-ˈüs-(ə-)rē  -ˈüz- 

: based on or producing illusion : being deceptive

the search for the ultimate cure-all for a hangover has proved illusory

—M. L. Herndon

Legal Definition

illusory

adjective

il·​lu·​so·​ry i-ˈlü-sə-rē, -zə-rē 

: likely to mislead or deceive : false, deceptive

an illusory plea bargain leading to a longer sentence than expected