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Synonyms

ostensibly

American  
[o-sten-suh-blee] / ɒˈstɛn sə bli /

adverb

  1. in appearance only; supposedly.

    The event was ostensibly for charity, but he mainly used it to promote his new book.


ostensibly British  
/ ɒˈstɛnsɪblɪ /

adverb

  1. (sentence modifier) apparently; seemingly

"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

Other Word Forms

Etymology

Origin of ostensibly

First recorded in 1760–70; ostensib(le) ( def. ) + -ly ( def. )

Explanation

Ostensibly is an adverb you use to talk about something that looks one way, but underneath there's the hint of a different motivation for that action. One day you go to an ice cream shop. Then the next day. And the next. You keep going, ostensibly to buy ice cream, but there’s a deeper reason. The cute person who works there, perhaps? To ostensibly do something admits that the surface reason might not be the only reason. The Latin root words translate as “to stretch in view of,” so imagine that you’re stretching a thin mask over your true intentions.

Keep Reading on Vocabulary.com

Vocabulary lists containing ostensibly

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.

See Examples For:

The petition ostensibly focuses on the procedural issue of the parents’ standing to sue.

From Slate ● Oct. 6, 2026

Who is doing the most good when, ostensibly, everyone is trying to do the right thing, acting within their rights as parents or arms of the government?

From Salon ● Sep. 19, 2026

Though humanitarian goods and food are ostensibly exempt, the reality is that shippers are reluctant to service Iran.

From The Wall Street Journal ● Sep. 17, 2026

The order also called on the Department of Homeland Security to develop its own lists of eligible citizen voters by state, ostensibly to be compared against the state lists.

From Los Angeles Times ● Sep. 1, 2026

Set in medieval Spain, Parsifal is ostensibly a parable about the Holy Grail, the cup from which Christ drank at the Last Supper.

From "The Story of Music" by Howard Goodall

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