Deeper vs Lower vs Profound vs Serious vs Severe

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

Deeper

Top 2,000 (common)

Lower

Top 1,000 (very common)B2verb

Profound

FormalTop 2,000 (common)C1adjective

Serious

Top 1,000 (very common)A2adjective

Severe

Top 1,000 (very common)B2adjective
Most formal: Profound
 DeeperLowerProfoundSeriousSevere
Pronunciation🇬🇧 //ˈdiːpə//🇺🇸 //ˈdiːpər//🇬🇧 /["/ˈləʊə(r)/","/ˈləʊəz/","/ˈləʊəd/","/ˈləʊərɪŋ/"]/🇺🇸 /["/ˈləʊər/","/ˈləʊərz/","/ˈləʊərd/","/ˈləʊərɪŋ/"]/🇬🇧 /["/prəˈfaʊnd/"]/🇺🇸 /["/prəˈfaʊnd/"]/🇬🇧 /["/ˈsɪəriəs/"]/🇺🇸 /["/ˈsɪriəs/"]/🇬🇧 /["/sɪˈvɪə(r)/"]/🇺🇸 /["/sɪˈvɪr/"]/
MeaningMore deep in position or meaning.to make something less high or to decrease itVery deep or serious.Not joking; importantVery bad or serious.
ExampleThe ocean is much deeper than most lakes.The manager decided to lower the prices to attract more customers.Her speech was so profound that it left the audience in deep thought.He has a serious expression on his face.The storm caused severe damage to the coastal towns.
RegisterNeutralNeutralFormalNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)Top 2,000 (common)Top 1,000 (very common)Top 1,000 (very common)
CEFR level-B2C1A2B2
Part of speechverbadjectiveadjectiveadjective
Collocationsdeeper meaning, deeper understanding, deeper thoughts, deeper voice, deeper feelingscarefully, gently, gradually, into, onto, to, carefully, gently, gradually, into, onto, toprofound impact, profound thoughts, profound understanding, profound change, profound experiencebe, look, seem, extremely, fairly, very, for, nothing serious, serious enough to warrant something, be, look, sound, extremely, fairly, very, aboutbe, seem, sound, extremely, fairly, very
Antonymsshallower, surfaceraise, increase, elevatesuperficial, shallowfunny, light-hearted, playfulmild, gentle, light
Common mistakesConfused with 'more deep' which is incorrect., Used in contexts where 'deeper' isn't necessary, like simple descriptions., Mispronounced by stressing the wrong syllable.Confused with 'lowered' when describing past actions., Incorrectly using 'lower' as an adjective instead of a verb., Mistaking 'lower' for 'less' in some contexts.Confused with 'profoundly' (adverb form)., Used incorrectly with trivial subjects., Overused in everyday language.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.
Usage notesUse 'deeper' when comparing depths or complexities. Avoid informal contexts where 'deep' suffices.Use 'lower' when referring to reducing something physically or metaphorically. It’s appropriate in most contexts, but avoid using it in overly formal writing.Used in serious discussions or academic contexts. Not commonly used in casual conversation. Appropriate when describing ideas, feelings, or experiences that have significant depth.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.

See it in real clips

Deeper
Lower
Profound
Serious

Frequently asked questions: Deeper vs Lower vs Profound vs Serious vs Severe

What's the difference between Deeper, Lower, Profound, Serious, and Severe?

Deeper: More deep in position or meaning. Lower: to make something less high or to decrease it Profound: Very deep or serious. Serious: Not joking; important Severe: Very bad or serious.

Which is more formal: Deeper, Lower, Profound, Serious, and Severe?

Profound is the most formal of these.

Which is more advanced: Deeper, Lower, Profound, Serious, and Severe?

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

Can you show an example of each?

Deeper: The ocean is much deeper than most lakes. Lower: The manager decided to lower the prices to attract more customers. Profound: Her speech was so profound that it left the audience in deep thought. Serious: He has a serious expression on his face. Severe: The storm caused severe damage to the coastal towns.

Can I use Deeper, Lower, Profound, Serious, and Severe interchangeably?

Not always. Deeper, Lower, Profound, Serious, 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.

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