Colourless
Colourless adjective - Weak in color; not colorful.
Vacuous and colourless are semantically related. in uninteresting topic. In some cases you can use "Vacuous" instead an adjective "Colourless", when it comes to topics like unexciting.
Vacuous
Vacuous adjective - Lacking contents that could or should be present.
Colourless and vacuous are semantically related. Sometimes you can use "Colourless" instead an adjective "Vacuous".
Mutual synonyms
Cite this Source
Vacuous and Colourless. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/colourless/vacuous
Colourless & Vacuous. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/colourless/vacuous>.
Vacuous or Colourless. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/colourless/vacuous.
Google Ngram Viewer shows how "colourless" and "vacuous" have occurred on timeline