What does crassitude mean?
Crassitude is an uncommon English noun denoting the condition of being thick or dense — literally, a coarseness or heaviness of substance, and figuratively, a gross dullness of intellect or insensitivity of manner. Borrowed into English in the early seventeenth century from Latin crassitudo ('thickness'), it carries the weight of classical learning and tends to appear in literary, satirical, or deliberately elevated prose rather than casual conversation. A critic might deplore the crassitude of a tasteless joke, while a chemist might once have used the term for the density of a liquid. Its figurative sense is today the more familiar one, making crassitude a colourful synonym for obtuseness or boorishness. Though rare, it rewards writers seeking a stately, slightly ironic vocabulary for describing coarseness of either matter or mind.
nounThe quality or state of being thick, dense, or coarse; also, by figurative extension, gross stupidity or dullness of mind.
- Physical thickness, denseness, or coarseness of substance or texture.
- Figurative gross stupidity or dull-wittedness; insensitivity or vulgarity of manner.
"His remark betrayed a crassitude that made the whole room wince."
"The stew had reduced to a crassitude that clung stubbornly to the spoon."
"Only sheer crassitude could explain his laughing at the funeral."
Rare; usually treated as an uncountable quality.
"Such crassitudes of taste were common among the nouveau riche."
Crassitude comes straight from the Latin word for 'thick' — so calling someone thick-headed has been a formal, dictionary-backed insult since the seventeenth century.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of crassitude
Crassitude derives from Latin crassitudo, meaning 'thickness' or 'density', formed on crassus ('thick, fat, coarse'). The Latin root also gave rise to English 'crass', which preserves the figurative sense of gross stupidity. The word entered English in the early seventeenth century as part of the wave of learned Latinate borrowings of that period, initially retaining its literal physical sense before developing its figurative application to mental dullness.
How crassitude is actually used
Crassitude is rare and decidedly literary or archaic in tone; it appears mostly in older texts or deliberately ornate prose. The literal sense (physical thickness) is the older meaning, while the figurative sense of mental dullness or gross insensitivity is what modern readers are most likely to encounter. Because it is uncommon, using it lends writing a formal, somewhat antique flavour rather than everyday directness.
Easily confused with crassitude
Gratitude is thankfulness for kindness received, whereas crassitude means thickness or gross insensitivity — the two words rhyme and share the same ending but are unrelated in meaning.
Crassness refers specifically to vulgar, unrefined behaviour, while crassitude more broadly denotes physical thickness or density and, figuratively, mental dullness.