What does cretin mean?
A cretin is a person regarded as stupid, insensitive, or contemptible, making the word one of English's more forceful everyday insults. It is informal and often considered offensive, typically appearing in phrases like 'an absolute cretin' to express exasperation at someone's foolish behaviour. The word has a surprising history: it entered English in the late eighteenth century from French, which had borrowed it from an Alpine dialect term for people affected by congenital thyroid deficiency — a condition once common in remote mountain regions of Switzerland and France. That dialect word ultimately derives from 'chrétien,' meaning Christian, apparently used in the sense of 'human being,' perhaps to emphasize that those affected still shared a common humanity. Because of this origin, the older medical use of 'cretin' is now obsolete and considered deeply inappropriate, while the insulting sense persists. Anyone using the word today should be aware of both its harshness and its sensitive medical past.
A stupid, insensitive, or contemptible person.
"Don't be such a cretin — check the address before you hit send."
Informal and offensive; chiefly British in frequency but widely understood.
(Historical, medical) A person affected by cretinism, a condition of stunted physical and mental development caused by congenital thyroid deficiency.
"Nineteenth-century physicians travelling through the Alps documented numerous cases they described as cretins."
Obsolete in medical practice; replaced by terms such as 'congenital hypothyroidism.'
The plural is regular; it is most often encountered in the insulting sense, frequently preceded by intensifiers such as 'absolute' or 'total' in the singular.
"The vandals who wrecked the park were nothing but a bunch of cretins."
'Cretin' began as a term of pity and even kindness — Swiss doctors used it for people with congenital thyroid disease, deriving it from a word meaning 'Christian,' as if to say 'human being' — before it curdled into one of the sharpest insults in English.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of cretin
The word 'cretin' entered English in the late eighteenth century from French, where it was used medically to describe people affected by congenital thyroid deficiency in the Alpine regions. French borrowed it from a Savoyard or Alpine dialect form, which ultimately traces back to Latin 'Christianus,' meaning Christian, via Old French 'chrétien.' The original sense appears to have been 'human being,' applied sympathetically to those with the condition. As the medical understanding of the disorder advanced, the term fell out of clinical use and survived only as an insult.
Related word forms
How cretin is actually used
In modern usage 'cretin' is almost exclusively an insult and is considered offensive. Its historical medical sense relating to congenital hypothyroidism is obsolete and now regarded as inappropriate; modern medicine uses terms such as 'congenital hypothyroidism.' The word is informal and chiefly found in British English speech, though understood throughout the English-speaking world.
Easily confused with cretin
A crescent is a curved shape like the moon's phase, whereas a cretin is an insult for a stupid or insensitive person — they merely share similar opening letters.
Cretinism is the medical condition of congenital thyroid deficiency from which the insult 'cretin' derives, not the insult itself.