Essential vs It is imperative

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

Essential

Top 1,000 (very common)B1adjective

It is imperative

FormalTop 2,000 (common)
Most formal: It is imperativeMost common: Essential
 EssentialIt is imperative
Pronunciation🇬🇧 //ɪˈsɛnʃəl//🇺🇸 //ɪˈsɛnʃəl//🇬🇧 //ɪt ɪz ɪmˈpɛrətɪv//🇺🇸 //ɪt ɪz ɪmˈpɛrətɪv//
MeaningVery important or necessary.It is very important or necessary.
ExampleWater is essential for all living things.It is imperative that we submit the report by the deadline.
RegisterNeutralFormal
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelB1-
Part of speechadjective
Collocationsessential item, essential skills, essential partit is imperative to, it is imperative that, it is absolutely imperative, it is critical and imperative, it is considered imperative
Antonymsunnecessary, optional, secondary-
Common mistakesConfused with 'essentially' which means 'basically'., Overused in informal situations where simpler words like 'basic' would suffice., Using it in negative sentences can sound awkward.Using in casual contexts where simpler phrases work better., Confusing with 'it's important', which is less urgent.
Usage notesUse 'essential' to emphasize the importance of something. It's commonly used in both formal and informal contexts.Use in formal writing or speeches to emphasize the necessity of an action. Avoid in casual conversations.

See it in real clips

Essential
It is imperative

Frequently asked questions: Essential vs It is imperative

What's the difference between Essential and It is imperative?

Essential: Very important or necessary. It is imperative: It is very important or necessary.

Which is more formal: Essential and It is imperative?

It is imperative is the most formal of these.

Which is more common: Essential and It is imperative?

Essential is the most common in everyday English.

Can you show an example of each?

Essential: Water is essential for all living things. It is imperative: It is imperative that we submit the report by the deadline.

Can I use Essential and It is imperative interchangeably?

Not always. Essential and It is imperative 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.

Related comparisons