Portuguese
The 46-letter word pneumoultramicroscopicossilicovulcanoconioticozinhos (plural diminutive of pneumoultramicroscopicossilicovulcanoconiótico) is the longest word . It is an adjective referring to a sufferer of the disease pneumonoultramicroscopicsilicovolcanoconiosis. The 29-letter word anticonstitucionalissimamente (adverb, meaning "in a very unconstitutional way") is recognized as being the longest non-technical word.
Read more about this topic: Longest Words