What does curiosity mean?
Curiosity is a noun with two related meanings: most commonly, it refers to a strong desire to know, learn, or understand something — the impulse behind exploration, questioning, and discovery. Less frequently, it denotes an unusual or interesting object, something rare or strange that attracts attention. The word carries largely positive connotations in modern usage, celebrated as a driver of science and learning, though phrases like 'morbid curiosity' show it can shade into unwelcome prying. It derives from the Latin cura, meaning 'care,' via the Old French curieux, so at its root curiosity implies caring enough to investigate. Common collocations include 'arouse curiosity,' 'satisfy one's curiosity,' and 'out of curiosity.' Its adjective form is curious, and it remains one of the most valued qualities in education, research, and everyday conversation.
A strong desire to know or learn something.
"Out of sheer curiosity, she opened the old letter."
The dominant modern sense; typically neutral to positive in register.
An unusual or interesting object or thing that arouses interest or attention.
"The museum displayed a curiosity: a clock made entirely of wood."
Often used in plural ('curiosities') to refer to a collection of such objects.
The plural is common mainly for the second sense — unusual objects — as in 'a cabinet of curiosities'; the abstract first sense rarely appears in plural.
"Her shelves were crowded with curiosities gathered on her travels."
The Latin root of 'curiosity' — cura, meaning care — means that to be curious is literally to take care enough to want to know.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of curiosity
Curiosity comes from the Latin curiositas, derived from curius/curosus, rooted in cura meaning 'care' or 'concern'. It entered English via Old French curiosité in the late Middle English period, originally sometimes carrying negative connotations of meddlesome inquiry before acquiring its modern positive sense of eager desire for knowledge. Cognates include the adjective curious and words sharing the cura root such as secure, procure, and cure.
Related word forms
How curiosity is actually used
Generally positive when describing intellectual eagerness, but can carry a mildly negative tone when implying prying into other people's affairs ('idle curiosity', 'morbid curiosity'). The second sense (an odd object) often appears in plural form.
Easily confused with curiosity
Curiosity is the noun denoting the desire to know; curiousness is a less common alternative noun form, and 'curious' is the adjective.