1. In a swift manner.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• switly,
• switfly,
• sweatly,
• siftly,
• swifly,
• swiftely,
• swiftley,
• solftly,
• swiftyly,
• squiftly,
• shiftly,
• swifftly,
• swiflty,
• swifted,
• sloftly,
• saftly,
• swftly,
• swiflt,
• saeftly,
• spoftly

• swiftlet.

The adjective form of the word "swiftly" is "swift".

The plural form of "swiftly" is "swiftlies." However, it is worth noting that "swiftly" is an adverb and does not typically have a plural form.

The singular form of the word "swiftly" is "swift"