adverb

suddenly

suddenly, abruptly, unexpectedly

Suddenly, the lights went out.

Suddenly, the lights went out.

He suddenly changed his mind.

He suddenly changed his mind.

((at the start of a clause)) Suddenly, it started to rain.

((after a verb)) He stopped suddenly.

Synonyms: abruptly, unexpectedly; Antonyms: gradually, slowly

From the adjective 'sudden' plus the adverb-forming suffix '-ly'.

Think of a 'sudden' event. Adding '-ly' describes how it happened: 'suddenly'.

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