Intensive vs Severe

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

Intensive

Top 2,000 (common)C1adjective

Severe

Top 1,000 (very common)B2adjective
Most common: Severe
 IntensiveSevere
Pronunciation🇬🇧 /["/ɪnˈtensɪv/"]/🇺🇸 /["/ɪnˈtensɪv/"]/🇬🇧 /["/sɪˈvɪə(r)/"]/🇺🇸 /["/sɪˈvɪr/"]/
MeaningVery strong or focused.Very bad or serious.
Examplean intensive language courseThe storm caused severe damage to the coastal towns.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CEFR levelC1B2
Part of speechadjectiveadjective
Collocationsbe, highly, very, increasingly, be, highly, very, increasingly, be, highly, very, increasinglybe, seem, sound, extremely, fairly, very
Antonymseasy, simple, lightmild, gentle, light
Common mistakesConfusing with 'extensive' which means covering a large area or amount., Using incorrectly to describe something simple or easy-going., Omitting the noun it describes, making the meaning unclear.Confusing with 'server', which has a different meaning., Using 'severe' in too casual a context, where 'bad' would be better., Mistaking it for 'serene', which means peaceful.
Usage notesUsed to describe courses, training, or efforts that require a lot of focus or effort. More commonly used in academic or formal contexts. Not suitable for casual conversations.Use 'severe' in contexts like weather, illness, or punishment. It's appropriate in serious discussions but not in casual conversations.

Frequently asked questions: Intensive vs Severe

What's the difference between Intensive and Severe?

Intensive: Very strong or focused. Severe: Very bad or serious.

Which is more common: Intensive and Severe?

Severe is the most common in everyday English.

Which is more advanced: Intensive and Severe?

Intensive is the highest level, at C1, on the CEFR scale.

Are Intensive and Severe the same CEFR level?

Intensive: C1, Severe: B2 on the CEFR scale.

What part of speech are Intensive and Severe?

Intensive: adjective, Severe: adjective.

Can you show an example of each?

Intensive: an intensive language course Severe: The storm caused severe damage to the coastal towns.

Can I use Intensive and Severe interchangeably?

Not always. Intensive and Severe 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