Also found in: Thesaurus.
1. Irritable and perverse in disposition; ill-tempered.
2. Difficult to understand; complicated.
3. Difficult to read; cramped: crabbed handwriting.
[Middle English, from crabbe, crab (influenced by crab); see crab1.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.