swiftly

As adverbs the difference between swiftly and soon

is that swiftly is in a swift manner; quickly; with quick motion or velocity; fleetly while soon is immediately, instantly.

As an adjective soon is

occurring within a short time, or quickly.

As adverbs the difference between sprightly and swiftly

is that sprightly is in a lively and vigorous way while swiftly is in a swift manner; quickly; with quick motion or velocity; fleetly.

As an adjective sprightly

is animated, vivacious or gay; lively.

Snappy is a related term of swiftly.

As an adjective snappy

is (label) rapid and without delay.

As an adverb swiftly is

in a swift manner; quickly; with quick motion or velocity; fleetly.

Fleet is a related term of swiftly.

As a proper noun fleet

is the stream that ran where fleet street now runs.

As an adverb swiftly is

in a swift manner; quickly; with quick motion or velocity; fleetly.

Swiftly is a related term of lickety-split.

As adverbs the difference between swiftly and lickety-split

is that swiftly is in a swift manner; quickly; with quick motion or velocity; fleetly while lickety-split is quickly; as fast as possible; in short order.

Speedy is a related term of swiftly.

As an adjective speedy

is rapid; swift.

As an adverb swiftly is

in a swift manner; quickly; with quick motion or velocity; fleetly.

As adverbs the difference between swiftly and immediately

is that swiftly is in a swift manner; quickly; with quick motion or velocity; fleetly while immediately is in an immediate manner; instantly or without delay.

As a conjunction immediately is

Indicates that the dependent clause describes something that occurs immediately after the independent clause's referent does.