Drastic vs Extreme vs Serious vs Severe vs Significant

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

Drastic

Top 2,000 (common)B1

Extreme

Top 2,000 (common)A2adjective

Serious

Top 1,000 (very common)A2adjective

Severe

Top 1,000 (very common)B2adjective

Significant

Top 1,000 (very common)B2adjective
 DrasticExtremeSeriousSevereSignificant
Pronunciation🇬🇧 //ˈdræstɪk//🇺🇸 //ˈdræstɪk//🇬🇧 /["/ɪkˈstriːm/"]/🇺🇸 /["/ɪkˈstriːm/"]/🇬🇧 /["/ˈsɪəriəs/"]/🇺🇸 /["/ˈsɪriəs/"]/🇬🇧 /["/sɪˈvɪə(r)/"]/🇺🇸 /["/sɪˈvɪr/"]/🇬🇧 /["/sɪɡˈnɪfɪkənt/"]/🇺🇸 /["/sɪɡˈnɪfɪkənt/"]/
MeaningVery serious or extremeSomething very strong or intense.Not joking; importantVery bad or serious.Important or meaning a lot.
ExampleThe company made drastic cuts to reduce expenses.The weather was extreme during the summer, reaching temperatures over 100 degrees Fahrenheit.He has a serious expression on his face.The storm caused severe damage to the coastal towns.The research showed a significant improvement in patient outcomes.
RegisterNeutralNeutralNeutralNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)Top 1,000 (very common)Top 1,000 (very common)Top 1,000 (very common)
CEFR levelB1A2A2B2B2
Part of speechadjectiveadjectiveadjectiveadjective
Collocationsdrastic measures, drastic changes, drastic differences, drastic action, drastic reductionbe, appear, seem, particularly, really, very, at its most extreme, be, appear, seem, particularly, really, very, at its most extremebe, look, seem, extremely, fairly, very, for, nothing serious, serious enough to warrant something, be, look, sound, extremely, fairly, very, aboutbe, seem, sound, extremely, fairly, verybe, prove, become, extremely, fairly, very, for, to
Antonymsmild, gentle, subtlemild, moderate, ordinaryfunny, light-hearted, playfulmild, gentle, lightinsignificant, trivial, minor
Common mistakesConfusing with 'drastic' versus 'drastic changes' - the word is stronger when used with context., Using 'drastic' in a positive sense, when it usually describes negative changes., Misplacing 'drastic' in sentences, often forgetting it needs a context.Confused with 'extremely' which is an adverb., Using 'extreme' when referring to a moderate situation., Incorrectly applying it to describe everyday situations.Confused with 'seriously' as an adverb instead of an adjective., Using 'serious' in a casual context where 'funny' is more appropriate., Mispronouncing it, leading to misunderstanding.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.Confusing 'significant' with 'significance'., Using 'significant' as a noun instead of an adjective., Overusing 'significant' in casual speaking.
Usage notesUsed to describe changes or actions that are very strong or severe. It's appropriate in both formal and informal contexts.Used to describe something that is much more than normal or average. It's often used in contexts like sports, weather, or emotions. Avoid in overly casual contexts.Use 'serious' to describe someone who is focused or an important situation. Avoid using it in lighthearted contexts.Use 'severe' in contexts like weather, illness, or punishment. It's appropriate in serious discussions but not in casual conversations.Used in academic and formal contexts to indicate importance. Avoid in very casual conversations; instead, use simpler words like 'big' or 'important'.

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Serious

Frequently asked questions: Drastic vs Extreme vs Serious vs Severe vs Significant

What's the difference between Drastic, Extreme, Serious, Severe, and Significant?

Drastic: Very serious or extreme Extreme: Something very strong or intense. Serious: Not joking; important Severe: Very bad or serious. Significant: Important or meaning a lot.

Are Drastic, Extreme, Serious, Severe, and Significant the same CEFR level?

Drastic: B1, Extreme: A2, Serious: A2, Severe: B2, Significant: B2 on the CEFR scale.

Can you show an example of each?

Drastic: The company made drastic cuts to reduce expenses. Extreme: The weather was extreme during the summer, reaching temperatures over 100 degrees Fahrenheit. Serious: He has a serious expression on his face. Severe: The storm caused severe damage to the coastal towns. Significant: The research showed a significant improvement in patient outcomes.

Can I use Drastic, Extreme, Serious, Severe, and Significant interchangeably?

Not always. Drastic, Extreme, Serious, Severe, and Significant 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.

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