sick

/sɪk/
adjectiveBeginner
formal

Feeling ill or unwell, typically with physical symptoms like nausea, fever, or pain

She stayed home because she was feeling sick.

He called in sick to work.

💡

Can also be used to describe something unpleasant or disgusting (informal context)

informal

Extremely good or impressive (informal, slang)

That concert was sick!

His new car is sick.

💡

Common in youth slang, especially in North America

Collocations

sick oftired or annoyed by somethingsick leavetime off work due to illnesssick daya day taken off work due to illness

Synonyms

Antonyms

Related Phrases

sick and tiredphrase
very annoyed or frustrated
sick to one's stomachphrase
feeling nauseous

💡Pro Tip

Context Matters

The meaning of 'sick' depends heavily on context. In formal settings, it typically refers to illness, while in informal speech, it can mean 'excellent' or 'disgusting'.

Gold Rule

Formal vs. Informal

In professional or formal writing, use 'sick' only to describe illness. In casual conversation, it can have other meanings.

📖Word Origin

Old English 'sēoc' (past participle of 'sēcan' meaning 'to be sick'), from Proto-Germanic 'sekwaz'

📝Usage Notes

In informal contexts, 'sick' can also mean 'disgusting' (e.g., 'That smell is sick') or 'excellent' (e.g., 'That skateboard trick was sick').

Word Breakdown

sick
ill or unwell
root
English Dictionary