Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Pleasing or agreeable to the ear.
Century Dictionary and Cyclopedia
- Consisting of agreeable articulate elements; well-sounding; euphonic.
Wiktionary
GNU Webster's 1913
- adj. Pleasing or sweet in sound; euphonic; smooth-sounding.
WordNet 3.0
- adj. (of speech or dialect) pleasing in sound; not harsh or strident
- adj. having a pleasant sound
Examples
“I see no objection to its being old," the Princess answered dryly, "but whatever else it is it's not euphonious," she went on, isolating the word euphonious as though between inverted commas, a little affectation to which the Guermantes set were addicted.”
“Write yourself fully and always Harriet Beecher Stowe, which is a name euphonious, flowing, and full of meaning.”
The Life of Harriet Beecher Stowe
“Since the word euphonious is an adjective meaning melodious, to say an euphonious keeps you smart would make a musician laugh and a professor scratch his head.”
““I see no objection to its being old,” the Princess answered dryly, “but whatever else it is it’s not euphonious,” she went on, isolating the word euphonious as though between inverted commas, a little affectation to which the”
“The ancients thought of their _lives_ as woven on the loom of spiteful fates, whom they endeavored to humor by calling euphonious names.”
“Don't you mean 'euphonious'?" asked Migwan with a smile.”
The Camp Fire Girls Do Their Bit Or, over the Top with the Winnebagos
“In her euphonious name we find both her family's fantasies and their poverty.”
The Wall Street Journal: Why Juliet Could Never Be Plain Julie
“I think that's a lot more euphonious than Gliese 581g.”
“Opinion -- raw, cruel, unguarded, outrageous, euphonious, cacophonous opinion -- is what is riding high.”
“But the "boy wonder" opted instead to use an original script: the generations-spanning biography of a powerful press-baron with political ambitions and the euphonious name of Charles Foster Kane.”
Lists
These user-created lists contain the word ‘euphonious’.
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Word Words
This used to be my nym list, but there are so many words about words, I think it's time to expand and open.
acronym, antonym, aptronym, autoantonym, autonym, bacronym, capitonym, contranym, contronym, eponym, exonym, heteronym and 120 more...
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briwref's list
defalcation, macerate, beldam, nescience, ochlocracy, bibelot, estivate, spatulated, introversive, mastoidal, belletristic, objurgation and 108 more...
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::: I like :::
soliloquy, eros, agape, solipsism, palimpsest, fabulist, lore, raconteur, harbinger, anamnesis, sattvic, comprecation and 20 more...
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smoooth
satined, sleek, glossy, legato, uncrannied, suave, smoothen, polish, satiny, flowing, levigate, politic and 77 more...
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Descriptions of Sound
jingling, gurgling, horrisonous, horrisonant, crepitant, screeching, ringing, sonorous, clamorous, rattling, roaring, breathy and 71 more...

Lefty Webb also there is euphonium Dec 21, 2010
hernesheir euphonous Dec 21, 2010
seanmeade what a beautiful sounding word! ;-) Apr 5, 2007