: a neurotic state characterized especially by phobias, obsessions, or compulsions that one knows are irrational

Word History

Etymology

borrowed from French psychasthénie, from psych- psych- + asthénie asthenia

First Known Use

1900, in the meaning defined above

Time Traveler
The first known use of psychasthenia was in 1900

Browse Nearby Words

Cite this Entry

“Psychasthenia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/psychasthenia. Accessed 7 Jul. 2026.

Medical Definition

psychasthenia

noun
: a neurotic state characterized especially by phobias, obsessions, or compulsions that one knows are irrational
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