What does fixity mean?
Fixity refers to the quality of being fixed, stable, or unchanging — whether in physical position, character, belief, or condition. The word is most at home in formal and scholarly registers: biologists once spoke of the 'fixity of species' to express the belief that kinds of living things never change, lawyers use 'fixity of tenure' to describe secure rights of occupancy, and writers invoke 'fixity of purpose' to denote unwavering resolve. Derived from the Latin root figere, meaning to fasten, fixity carries connotations of permanence, reliability, and rootedness, though in some contexts a hint of inflexibility. It stands opposed to notions such as fluidity, mutability, and changeability, making it a useful term whenever contrast between the enduring and the shifting matters. Though rare in casual conversation, it rewards readers of history, philosophy, and law who encounter its distinctive vocabulary of stability.
nounThe quality or state of being fixed, stable, or permanent; the condition of remaining unchanged in place, character, or condition.
- The state or quality of being fixed, stable, and unchanging.
- Firmness of purpose or intention; steadfastness.
"The fixity of the mountain landscape gave her a sense of permanence amid life's upheavals."
"Victorian science clung to the notion of the fixity of species, until Darwin's theory of natural selection upended it."
"Her fixity of purpose carried her through years of setbacks that would have discouraged a less determined candidate."
The plural 'fixities' exists but is rare, typically appearing in scholarly contexts referring to multiple distinct fixed states or principles.
"The treatise catalogued the various fixities that structured medieval thought."
Fixity once carried real legal weight — 'fixity of tenure' described a tenant's protected right to stay put, making this abstract noun a matter of livelihood.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of fixity
Fixity derives ultimately from the Latin verb figere, meaning 'to fasten' or 'to fix,' the same root that gives us words like fixture and affix. The word entered English usage in the early seventeenth century, when scholars writing in Latin-influenced prose sought terms for permanence and immutability. Related forms appear across Romance languages, such as French fixité, reflecting the same classical lineage.
How fixity is actually used
Fixity is a formal, somewhat literary word, more common in academic, legal, and philosophical writing than in everyday speech. It often appears in historical contexts, such as debates over the 'fixity of species' in pre-Darwinian biology, and in phrases like 'fixity of tenure' or 'fixity of purpose.' Its connotations are generally neutral to positive, suggesting reliability and steadfastness, though it can carry a faint suggestion of rigidity or resistance to necessary change.
Easily confused with fixity
A fixture is a physical object permanently attached to a building or property, whereas fixity is the abstract quality of being fixed and unchanging.