adjective

ill

sick, unwell, bad, harmful

He is ill in bed.

He is sick in bed.

That was an ill-advised decision.

That was an ill-advised decision.

((to be)) ill to be unwell He is ill in bed.

Synonyms: sick, unwell; Antonyms: well, healthy

From Old Norse 'illr' meaning 'evil, bad'.

Imagine you have to take a 'pill' because you are 'ill'.

This page is designed for learning support. Please use it as a learning reference, not as a formal reference.