undercolour

== English == === Alternative forms === undercolor === Etymology === From under- +‎ colour. === Pronunciation === === Noun === undercolour (plural undercolours) A colour used as a base and then coloured over, as in watercolour painting. The colour of the underparts of a bird, rabbit, etc. ==== Translations ==== === Verb === undercolour (third-person singular simple present undercolours, present participle undercolouring, simple past and past participle undercoloured) (transitive) To colour insufficiently.