Definition ill in American English

ill adjective

adjective

/ɪl/

▪ critically, dangerously, desperately, gravely, really, seriously, severely, very

Example

He's been ill for a couple of weeks.

Example

She was too ill to travel.

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Example

terminally ill (=going to die because of an illness)

Example

Example

She was unlucky enough to fall ill on vacation.

Example

Sarah was seriously ill with a fever.

Synonyms and related words

ill frail unfit

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Example

Their defeat was mainly due to their ill-discipline.

Example

The fish didn't taste fresh, but we suffered no ill effects.

Example

Synonyms and related words

dangerous harmful disastrous bad poor second-rate

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Words related to ill:

feeling (phrase) can ill afford (to do) something (phrase) for good or ill (phrase) ill (adjective) ill (adverb) ill (noun) ill at ease (phrase) ill feeling (noun) ill health (noun) ill will (noun) ill wind (noun) ill- (prefix) ill-advised (adjective) ill-behaved (adjective) ill-bred (adjective) ill-concealed (adjective) ill-conceived (adjective) ill-considered (adjective) ill-defined (adjective) ill-disposed (adjective) ill-equipped (adjective) ill-fated (adjective) ill-fitting (adjective) ill-founded (adjective) ill-gotten gains (noun) ill-humored (adjective) ill-informed (adjective) ill-judged (adjective) ill-mannered (adjective) ill-prepared (adjective) ill-starred (adjective) ill-suited (adjective) ill-tempered (adjective) ill-timed (adjective) ill-treat (verb) Ill. (abbreviation) it’s an ill wind (that blows no good) (phrase) think of someone (phrase) wish someone (phrase)