Conventional vs Ordinary

When to use each in English, with meaning, register, and examples.

Conventional

Top 2,000 (common) B2 adjective

Ordinary

Top 2,000 (common) A2 adjective

	Conventional	Ordinary
Pronunciation	🇬🇧 /["/kənˈvenʃənl/"]/ 🇺🇸 /["/kənˈvenʃənl/"]/	🇬🇧 /["/ˈɔːdnri/"]/ 🇺🇸 /["/ˈɔːrdneri/"]/
Meaning	Normal or traditional; following usual practices.	Common or usual; not special or different.
Example	The company follows conventional methods of manufacturing that have been proven over decades.	The ordinary day turned extraordinary with a surprise party.
Register	Neutral	Neutral
How common	Top 2,000 (common)	Top 2,000 (common)
CEFR level	B2	A2
Part of speech	adjective	adjective
Collocations	be, seem, extremely, fairly, very, be, seem, extremely, fairly, very	be, look, seem, very, perfectly, quite, be, look, seem, very, perfectly, quite
Antonyms	unconventional, radical, innovative	extraordinary, exceptional, unusual
Common mistakes	'Conventional' is sometimes confused with 'conventionally.', Learners may think it means outdated instead of traditional., Use with a noun, not as a standalone adjective.	'Ordinary' confused with 'extraordinary' — they are opposites., Using 'ordinary' to describe positive experiences may seem negative., Misusing 'ordinary' as a verb.
Usage notes	Use 'conventional' for things that are considered usual. It's appropriate in formal writing but can be used in everyday conversation.	Use 'ordinary' to describe things that are normal or average. Avoid in contexts where something is rare or exceptional.

See it in real clips

an ordinary citizen will try to kill this man?

How I Met Your Mother › S1 E1

But this was no ordinary girl,

Peaky Blinders › S1 E1

I want a blow job off both of you before they let the ordinary people in.

an ordinary citizen will try to kill this man?

How I Met Your Mother › S1 E1

But this was no ordinary girl,

Ordinary

Frequently asked questions: Conventional vs Ordinary

What's the difference between Conventional and Ordinary?

Conventional: Normal or traditional; following usual practices. Ordinary: Common or usual; not special or different.

Which is more advanced: Conventional and Ordinary?

Conventional is the highest level, at B2, on the CEFR scale.

Are Conventional and Ordinary the same CEFR level?

Conventional: B2, Ordinary: A2 on the CEFR scale.

What part of speech are Conventional and Ordinary?

Conventional: adjective, Ordinary: adjective.

Can you show an example of each?

Conventional: The company follows conventional methods of manufacturing that have been proven over decades. Ordinary: The ordinary day turned extraordinary with a surprise party.

Can I use Conventional and Ordinary interchangeably?

Not always. Conventional and Ordinary are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.