Monotonous
Monotonous adjective - Causing weariness, restlessness, or lack of interest.
Simple and monotonous are semantically related. In some cases you can use "Simple" instead an adjective "Monotonous".
Simple
Simple adjective - Free from all additions or embellishment.
Monotonous and simple are semantically related. Sometimes you can use "Monotonous" instead an adjective "Simple".
Both words in one sentence
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Looked at that way, it's not only simple, it's downright monotonous.
Cite this Source
Simple and Monotonous. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/monotonous/simple
Monotonous & Simple. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/monotonous/simple>.
Simple or Monotonous. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/monotonous/simple.
Google Ngram Viewer shows how "monotonous" and "simple" have occurred on timeline