say it: KUHL-ur-luhs
colorless is an adjective meaning "lacking in variety and interest". It carries 2 recorded senses.
lacking in variety and interest
“a colorless and unimaginative person”
“a colorless description of the parade”
Definitions, synonyms and semantic relations for colorless come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.