adjective, fin·ni·er, fin·ni·est.

pertaining to or abounding in fish.
having fins; finned.

Origin of finny

First recorded in 1580–90; fin1 + -y1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for finny

Historical Examples of finny

  • Our success was greater with the finny, than was that of any exquisite with the fair tribe.

    Rattlin the Reefer

    Edward Howard

  • A whale differs also in many other respects from the finny tribe proper.

    Due West

    Maturin Murray Ballou

  • It was the most delectable of all the finny genus, superior even to the pompano.

    Blacksheep! Blacksheep!

    Meredith Nicholson

  • In two of them he found some fish, so dense was the finny multitude.

    Creatures of the Abyss

    Murray Leinster

  • Are they simply a poetical transfiguration of finny forms of the flood?

British Dictionary definitions for finny


adjective -nier or -niest

poetic relating to or containing many fishes
having or resembling a fin or fins
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for finny

1580s, from fin + -y (2).

Online Etymology Dictionary, © 2010 Douglas Harper