Sour and Thankless

Sour

Sour adjective - Causing or characterized by the one of the four basic taste sensations that is produced chiefly by acids.

Thankless and sour are semantically related. In some cases you can use "Thankless" instead an adjective "Sour".

Nearby Words: sourness, soured, sourish, souring, sourly

Thankless

Thankless adjective - Not showing gratitude.

Sour and thankless are semantically related. Sometimes you can use "Sour" instead an adjective "Thankless".

Cite this Source
Thankless and Sour. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/sour/thankless
Sour & Thankless. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/sour/thankless>.
Thankless or Sour. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/sour/thankless.
Google Ngram Viewer shows how "sour" and "thankless" have occurred on timeline