Longest word in Spanish

The 24-letter word electroencefalografistas, plural of electroencefalografista, means 'electroencephalographists' or 'electroencephalographers': specialists in the brain measurement technology of electroencephalography (EEG).^[3][6]

The 23-letter adverb anticonstitucionalmente means 'anticonstitutionally'.^[7] Anticonstitucionalmente is also the Portuguese translation; the French translation, anticonstitutionnellement, is an exceptionally long word as well (25 letters).^[7]

Long words

In the table below, all of the Spanish nouns except for arteriosclerosis can be pluralised by adding an s (es for internacionalizaciones) to the end. The adjective otorrinolaringológico can also be pluralised with an s; the plurals of the other adjectives end in es.

The RAE column indicates whether the

, its official dictionary.

Word	Letters	Syllables	Part of speech	Translation	RAE	Ref.
hipopotomonstrosesquipedaliofobia	33	13	noun	hippopotomonstrosesquipedaliophobia
esternocleidooccipitomastoideo	30	13	noun	sternocleidomastoid		[1]
hexakosioihexekontahexafobia	28	10	noun	hexakosioihexekontahexaphobia
anticonstitucionalmente	23	9	adverb	anticonstitutionally		[7]
electroencefalografista	23	10	noun	electroencephalographer		[3][6]
esternocleidomastoideo	22	9	noun	sternocleidomastoid		[2][8]
electroencefalografía	21	10	noun	electroencephalography		[8][9]
otorrinolaringológico	21	10	adjective	otorhinolaryngological		[10]
internacionalización	20	8	noun	internationalization		[11]
electroencefalograma	20	9	noun	electroencephalogram		[8][12]
otorrinolaringología	20	10	noun	otorhinolaryngology		[13]
electrocardiografía	19	9	noun	electrocardiography		[14][15]
desafortunadamente	18	8	adjective	unfortunately		[16]
anticonstitucional	18	7	adjective	anticonstitutional		[17]
desconsoladamente	17	7	adverb	disconsolately		[18]
interculturalidad	17	7	noun	interculturality		[19]
arteriosclerosis	16	6	noun	arteriosclerosis		[8][20]
electrodoméstico	16	7	noun	home appliance		[8][21]
inconstitucional	16	6	adjective	unconstitutional		[22]
limpiaparabrisas	16	7	noun	windshield wiper		[23]
inexorablemente	15	7	adverb	inexorably		[24]
paralelepípedo	14	7	noun	parallelepiped		[8][25]

See also

References