adjective

sudden

sudden, abrupt

There was a sudden change in the weather.

There was a sudden change in the weather.

All of a sudden, the lights went out.

All of a sudden, the lights went out.

a sudden ((noun)) a (noun) that is sudden We heard a sudden crash.

all of a sudden suddenly All of a sudden, it began to rain.

Synonyms: abrupt, unexpected, unforeseen; Antonyms: gradual, expected

From Old French 'sodain', from Latin 'subitaneus' meaning 'unexpected'.

Imagine a loud sound happening 'all of a sudden'. The surprise and speed are key to its meaning.

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