What does fissured mean?
"Fissured" describes something covered with, or divided by, long narrow cracks or clefts. It applies most literally to hard or dry surfaces: weathered rock faces, drought-baked earth, tree bark, old masonry, and even the human body — dermatologists speak of fissured skin, and dentists routinely note a benign condition called fissured tongue. The word also works figuratively, characterizing institutions, relationships, or societies riven by deep faults, as in "a party fissured by factional disputes." Its connotation is usually one of age, exposure, damage, or instability rather than sudden destruction; a thing becomes fissured over time. Derived ultimately from the Latin verb findere, meaning to split or cleave, it belongs to the same family as fission and fissile. Precise and evocative, "fissured" is especially valuable in scientific description and in writing that seeks an image of something cracked to its foundations.
Marked with long, narrow cracks, grooves, or clefts; used literally of physical surfaces and figuratively of deep divisions.
"The ancient oak's deeply fissured bark sheltered countless insects."
Common in geological, botanical, and medical description.
Past tense and past participle of "fissure": to split or crack into long narrow openings.
"Years of freeze–thaw cycles had fissured the granite."
The verb "fissure" is far less common than the noun; the participial form often functions adjectivally.
That network of cracks on your tongue your dentist calls "fissured"? It comes straight from the same Latin root as nuclear fission — both mean splitting.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of fissured
"Fissured" derives from "fissure," which entered English in the late 16th century from French fissure, taken from Latin fissura, meaning a cleft or crack, itself from the verb findere, "to split or cleave." The same Latin root gives English "fission" and "fissile," making these close cognates. The adjectival use developed naturally from the participle-like form describing surfaces bearing such clefts.
Related word forms
How fissured is actually used
Most frequent in descriptive and technical writing — geology, botany, dermatology, and dentistry all use the term precisely (e.g., a "fissured tongue" is a benign common condition). Figurative use tends toward formal or literary registers.
Easily confused with fissured
"Fissile" describes material capable of undergoing nuclear fission or being easily split, while "fissured" describes something that already has cracks or splits.