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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 rest ostensibly had children some other way, or chose not to have children at all.

From Slate Aug. 11, 2026

Flock cameras are installed by police departments, homeowners' associations and businesses, ostensibly to catch criminals in the act.

From Barron's Aug. 9, 2026

Despite being in charge of several enormous companies, Musk regularly wades into ostensibly local disputes, not just in Belfast but across Europe, apparently gleaning much of his knowledge from people he follows on X.

From BBC Jul. 27, 2026

The officials are ostensibly questioning Weist, but they are also, in a sense, questioning their own categories.

From Los Angeles Times Jul. 7, 2026

We were up in her room, at her desk, ostensibly to cram for her home school chem test.

From "Burning Blue" by Paul Griffin

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