FLAVORLESS
bland, flat, flavorless, flavourless, insipid, savorless, savourless, vapid
(adjective) lacking taste or flavor or tang; “a bland diet”; “insipid hospital food”; “flavorless supermarket tomatoes”; “vapid beer”; “vapid tea”
Source: WordNet® 3.1
Etymology
Adjective
flavorless (comparative more flavorless, superlative most flavorless)
Lacking taste or flavor; without seasoning, spice, or discernible qualities of taste.
Flat; lacking character or definition.
(physics) Without flavor.
Synonyms
• (lacking taste): insipid
• (lacking character): insipid
Source: Wiktionary
Fla"vor*less, a.
Definition: Without flavor; tasteless.
Source: Webster’s Unabridged Dictionary 1913 Edition