Abrupt a. : Broken off; very steep, or craggy, as rocks, precipices, banks; precipitous; steep; as, abrupt places.

Abrupt a. : Without notice to prepare the mind for the event; sudden; hasty; unceremonious.

Abrupt a. : Having sudden transitions from one subject to another; unconnected.

Abrupt a. : Suddenly terminating, as if cut off.

Abrupt n. : An abrupt place.

Abrupt v. t. : To tear off or asunder.

Example:
How to avoid Abrupt color changes when knitting in the round?

Taxonomy
abrupt, abrupt manner, abrupt transition, Merriam-Webster Online Dictionary, Dictionary, webster, Word Games, Webster Online Dictionary with audio pronunciations, thesaurus, steep rise, glossary, english, language, ESL, Search, adjective, Etymology, Latin.

Defination from the web:
abrupt from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... impression of being cut or broken off; especially : involving a sudden steep rise or drop <abrupt hills> <a high abrupt bank bounded the stream> ...