English Reference
Adverb

ostensibly

adv. sent.
C1 Advanced US /ɑˈstɛnsəbɫi/ UK /ɒstˈɛnsəbli/ os·ten·si·bly

adv.appearing to be one way on the surface, even if the real reason or truth is different. You use this when someone says they are doing something for one reason, but you suspect there is a hidden motive.

adv.appearing or stated to be true, though not necessarily so; on the surface. Used to indicate a discrepancy between a stated justification and a suspected underlying reality.


SIMPLE

He visited the office ostensibly to say hello, but he wanted a job.

CONTEXTUAL

The troops were ostensibly deployed for peacekeeping, though many observers believed their true purpose was to secure the nearby oil fields.

COMPLEX

While the policy was ostensibly designed to protect consumer privacy, critics argued it served primarily to stifle competition by preventing smaller firms from accessing essential market data.

Usage

Often used to qualify a statement of purpose or intent; typically placed before the verb or adjective it modifies.

Ostensibly, the action taken by the clubs is part of an anti-scalping crackdown, as ever-rising demand has created a lucrative secondary market for scalpers to resell tickets at hugely inflated prices.

Phys.org· 21 Aug 2026

Which brings us to Love Me Not, an ostensibly harmless 2024 track by Chicago singer-songwriter Ravyn Lenae.

The Guardian· 6 Aug 2026

Common in culture and science writing


From ostensible + -ly.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Level C1 · Advanced
Frequency Frequent
Updated