Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun indigo

3 senses of indigo

Sense 1
anil, indigo, indigotin -- (a blue dye obtained from plants or made synthetically)
       => dye, dyestuff -- (a usually soluble substance for staining or coloring e.g. fabrics or hair)

Sense 2
indigo, indigo plant, Indigofera tinctoria -- (deciduous subshrub of southeastern Asia having pinnate leaves and clusters of red or purple flowers; a source of indigo dye)
       => shrub, bush -- (a low woody perennial plant usually having several major stems)

Sense 3
indigo -- (a blue-violet color)
       => violet, reddish blue -- (a variable color that lies beyond blue in the spectrum)

Antonyms of adj indigo

1 sense of indigo

Sense 1
indigo -- (having a color between blue and violet; "indigo flowers")

INDIRECT (VIA colored) -> uncolored, uncoloured -- (without color; "pure water is uncolored")

Similarity of adj indigo

1 sense of indigo

Sense 1
indigo -- (having a color between blue and violet; "indigo flowers")
       => colored (vs. uncolored), coloured, colorful -- (having color or a certain color; sometimes used in combination; "colored crepe paper"; "the film was in color"; "amber-colored heads of grain")