Meaning & use
monomania
An excessive, obsessive preoccupation with a single idea, subject, or activity.
See it in a sentence
His monomania about winning the competition left little room for anything else in his life.
The novel's narrator descends into monomania as his search for the whale consumes him.
A note on using this word
Monomania is a literary and somewhat dated term, most familiar from nineteenth-century fiction and psychology.
Words with a similar meaning
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