flavorless vs flavourless

flavorless and flavourless both are adjectives.

Word	Noun	Adjective	Verb	Adverb
flavorless	No	Yes	No	No
flavourless	No	Yes	No	No

As adjectives, flavorless and flavourless are synonyms defined as:

Other synonyms of flavorless include bland, flat, insipid, savorless, savourless, vapid.

flavorless (adjective)	flavourless (adjective)
lacking taste or flavor or tang	lacking taste or flavor or tang