Erratic and Lunatic

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Erratic adjective - Lacking a definite plan, purpose, or pattern.

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Lunatic and erratic are semantically related. In some cases you can use "Lunatic" instead an adjective "Erratic".

Nearby Word: errant

Lunatic adjective - Having or showing a very abnormal or sick state of mind.

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Erratic and lunatic are semantically related. Sometimes you can use "Erratic" instead an adjective "Lunatic".

Nearby Words: lunacy, luna

Cite this Source

Lunatic and Erratic. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/erratic/lunatic

Erratic & Lunatic. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/erratic/lunatic>.

Lunatic or Erratic. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/erratic/lunatic.

Google Ngram Viewer shows how "erratic" and "lunatic" have occurred on timeline