thsr.us/fast Fast means happening, moving, or doing something at great speed. You also use fast in questions or statements about speed. E.g. "Brindley was known as a very, very fast driver." #learnenglish #thesaurus #synonyms #ielts

@PowerThesaurus Swift looks great. Quick looks normal. Rapid is seems strange. Hasty is fine. Speedy is simple. Accelerated is scientific.

@BeingHu41632391 What an excellent review of the synonyms!! Thank you!