rapidly

adverb

RA-pid-lee/ˈɹæpɪdli/

1 meaning of rapidly

1
adverb
With great speed; in a quick, fast-moving manner.
The technology evolved rapidly over the past decade.
Her condition deteriorated rapidly, alarming the doctors on duty.
Similarquickly, fast, swiftly, speedily
Oppositeslowly, gradually

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Origin

Formed from the adjective "rapid" with the adverb-forming suffix "-ly."