Severe vs Stiff

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

Severe

Top 1,000 (very common)B2adjective

Stiff

Top 2,000 (common)B2adjective
Most common: Severe
 SevereStiff
Pronunciation🇬🇧 /["/sɪˈvɪə(r)/"]/🇺🇸 /["/sɪˈvɪr/"]/🇬🇧 /["/stɪf/"]/🇺🇸 /["/stɪf/"]/
MeaningVery bad or serious.Not able to move easily; hard.
ExampleThe storm caused severe damage to the coastal towns.The chair was so stiff that I couldn't sit comfortably on it.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelB2B2
Part of speechadjectiveadjective
Collocationsbe, seem, sound, extremely, fairly, verybe, feel, lie, extremely, fairly, very, with, (as) stiff as a board, be, feel, get, extremely, fairly, very, from, be, seem, extremely, fairly, very, be, look, seem, extremely, fairly, very, be, seem, extremely, fairly, very
Antonymsmild, gentle, lightflexible, limber, soft
Common mistakesConfusing 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.Confused with 'stave' as in to prevent something., Using 'stiff' to describe something that is simply cold without context., Misunderstanding 'stiff' as only referring to physical rigidity.
Usage notesUse 'severe' in contexts like weather, illness, or punishment. It's appropriate in serious discussions but not in casual conversations.Used to describe something that is rigid or difficult to bend; also can describe a person who is not relaxed in behavior. Avoid in very casual conversations when referring to people.

Frequently asked questions: Severe vs Stiff

What's the difference between Severe and Stiff?

Severe: Very bad or serious. Stiff: Not able to move easily; hard.

Which is more common: Severe and Stiff?

Severe is the most common in everyday English.

Are Severe and Stiff the same CEFR level?

Severe: B2, Stiff: B2 on the CEFR scale.

What part of speech are Severe and Stiff?

Severe: adjective, Stiff: adjective.

Can you show an example of each?

Severe: The storm caused severe damage to the coastal towns. Stiff: The chair was so stiff that I couldn't sit comfortably on it.

Can I use Severe and Stiff interchangeably?

Not always. Severe and Stiff 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