blood-red blood·red uncommon adjective 1. having any of numerous bright or strong colors reminiscent of the color of blood or cherries or tomatoes or rubies Synonymsredreddishruddycarminecerisecherrycherry-redcrimsonrubyruby-redscarlet Similarchromatic WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.