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25 of the Hardest English Words to Spell

English spelling rules and the “sound it out” approach probably won’t help you spell “autochthonous,” “chiaroscurist,” and other 10-dollar words. Challenge yourself and build your vocabulary with these 25 hard-to-spell English words that will have you reaching for your dictionary.

Text version

antediluvian

"Of or relating to the period before the flood described in the Bible."[1]

appoggiatura

"An embellishing note or tone preceding an essential melodic note or tone and usually written as a note of smaller size."[1]

asceticism

"The practice of avoiding indulgences and temptations, usually for religious reasons."[2]

autochthonous

"Found in a locality in which it originates; indigenous."[3]

chiaroscurist

"An artist who specializes in 'chiaroscuro,' which focuses on 'the use of deep variations in and subtle gradations of light and shade.'"[3]

crustaceology

"The study of crustaceans such as crabs and shrimp."[2]

cymotrichous

"Having wavy hair."[3]

elucubrate

"To produce (especially literary work) by long and intensive effort."[3]

esquamulose

"The opposite of 'squamulose,' which means 'furnished or covered with tiny scales.'"[3]

eudaemonic

"Pertaining or conducive to happiness."[3]

euonym

"An appropriate name for a person, place, or thing."[3]

guetapens

"A trap or a snare."[2]

hydrophyte

"An aquatic plant, one that grows only on or in water."[2]

insouciant

"Free from concern, worry, or anxiety; carefree; nonchalant."[3]

interlocutory

"Given during the course of a legal action."[2]

Laodicean

"Lukewarm or indifferent in religion or politics."[1]

logorrhea

"Pathologically incoherent, repetitious speech."[3]

macerate

"To soften (usually food) by soaking in liquid."[2]

odontalgia

"Pain in a tooth; toothache."[3]

prospicience

"The act of looking forward; foresight."[3]

scherenschnitte

"The art of cutting paper into decorative designs."[3]

smaragdine

"Of or relating to emeralds; emerald-green in color."[3]

soubrette

"A high female vocal range or an actress in an opera with such a vocal range."[2]

succedaneum

"A substitute."[1]

Ursprache

"An extinct language reconstructed using evidence from later languages--for example, Proto-Germanic, the hypothetical ancestor of the Germanic languages."[3]

Sources: 1 = BusinessInsider.com, 2 = RD.com, 3 = LittleThings.com

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