Antonyms of adj colourful

2 senses of colourful

Sense 1
colorful (vs. colorless), colourful (vs. colourless) -- (striking in variety and interest; "a colorful period of history"; "a colorful character"; "colorful language")

colorless (vs. colorful), colourless (vs. colourful) -- (lacking in variety and interest; "a colorless and unimaginative person"; "a colorless description of the parade")
        => neutral -- (lacking distinguishing quality or characteristics; "a neutral personality that made no impression whatever")
        => pale, pallid -- (lacking in vitality or interest or effectiveness; "a pale rendition of the aria"; "pale prose with the faint sweetness of lavender"; "a pallid performance")

Sense 2
colorful (vs. colorless), colourful -- (having striking color; "colorful autumn leaves")


Similarity of adj colourful

2 senses of colourful

Sense 1
colorful (vs. colorless), colourful (vs. colourless) -- (striking in variety and interest; "a colorful period of history"; "a colorful character"; "colorful language")
       => brave, braw, gay -- (brightly colored and showy; "girls decked out in brave new dresses"; "brave banners flying"; "`braw' is a Scottish word"; "a dress a bit too gay for her years"; "birds with gay plumage")
       => flashy, gaudy, jazzy, showy, sporty -- ((used especially of clothes) marked by conspicuous display)
       => many-sided -- (full of variety or interest; "a many-sided personality")
       => noisy -- (attracting attention by showiness or bright colors; "a noisy sweater")
       => picturesque -- (strikingly expressive; "a picturesque description of the rainforest")

Sense 2
colorful (vs. colorless), colourful -- (having striking color; "colorful autumn leaves")
       => ablaze -- (resembling flame in brilliance or color; "maple trees ablaze in autumn")
       => bright, brilliant, vivid -- (having striking color; "bright dress"; "brilliant tapestries"; "a bird with vivid plumage")
       => changeable, chatoyant, iridescent, shot -- (varying in color when seen in different lights or from different angles; "changeable taffeta"; "chatoyant (or shot) silk"; "a dragonfly hovered, vibrating and iridescent")
       => deep, rich -- (strong; intense; "deep purple"; "a rich red")
       => fluorescent -- (brilliantly colored and apparently giving off light; "fluorescent colors")
       => prismatic -- (exhibiting spectral colors formed by refraction of light through a prism; "prismatic light")
       => psychedelic -- (having the vivid colors and bizarre patterns associated with psychedelic states; "a psychedelic painting")
       => shrill -- (of colors that are bright and gaudy; "a shrill turquoise")
       => vibrant -- (of colors that are bright and striking)
          Also See-> chromatic#3