Nauseous this morning vs Sick

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

Nauseous this morning

Top 5,000 (fairly common)

Sick

Top 1,000 (very common)A1adjective
Most common: Sick
 Nauseous this morningSick
Pronunciation🇬🇧 //ˈnɔː.zəs//🇺🇸 //ˈnɔː.ʒəs//🇬🇧 /["/sɪk/"]/🇺🇸 /["/sɪk/"]/
MeaningFeeling sick to your stomach, especially wanting to vomit.Feeling unwell or ill.
ExampleI felt nauseous this morning after eating breakfast.I feel sick after eating too much candy.
RegisterNeutralNeutral
How commonTop 5,000 (fairly common)Top 1,000 (very common)
CEFR level-A1
Part of speechadjective
Collocationsfeel nauseous, nauseous feeling, become nauseousbe, look, become, chronically, desperately, extremely, from, with, be off sick, be, feel, look, horribly, very, violently, with, be as sick as a dog, sick to your stomach, be, become, get, heartily, really, absolutely, of, sick and tired of something, sick to the back teeth of something, sick to death of something, be, seem, sound, extremely, fairly, very, sick in the head, be, seem, sound, extremely, fairly, very, sick in the head
Antonyms-healthy, well
Common mistakesConfused with 'nauseated'; 'nauseous' means causing nausea., 'Nauseous' used incorrectly to describe someone feeling okay., Using 'nauseous' in informal contexts where simpler language is preferred.Confused with 'sick' vs 'ill' — 'ill' is more formal., Using 'sick' to mean healthy — common in slang., Misplacing 'sick' in a sentence.
Usage notesUse 'nauseous' when describing the feeling of sickness. More common in formal situations. Avoid using casually.Used to express physical illness or emotional disgust. In slang contexts, it can describe something awesome. Avoid misuse in formal writing.

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Nauseous this morning
Sick

Frequently asked questions: Nauseous this morning vs Sick

What's the difference between Nauseous this morning and Sick?

Nauseous this morning: Feeling sick to your stomach, especially wanting to vomit. Sick: Feeling unwell or ill.

Which is more common: Nauseous this morning and Sick?

Sick is the most common in everyday English.

Can you show an example of each?

Nauseous this morning: I felt nauseous this morning after eating breakfast. Sick: I feel sick after eating too much candy.

Can I use Nauseous this morning and Sick interchangeably?

Not always. Nauseous this morning and Sick 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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