RAP'ID, adjective [Latin rapidus, from rapio, the primary sense of which is to rush.] 1. Very swift or quick; moving with celerity; as a rapid stream; a rapid flight; a rapid motion. Part shun the goal with rapid wheels. 2. Advancing with haste or speed; speedy in progression; as rapid growth; rapid improvement. 3. Of quick utterance of words; as a rapid speaker.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI