[ beest-lee ]
/ ˈbist li /

adjective, beast·li·er, beast·li·est.

of or like a beast; bestial.
Informal. nasty; unpleasant; disagreeable.


Chiefly British Informal. very; exceedingly: It's beastly cold out.
British Informal. disagreeably; outrageously: beastly rude.

Origin of beastly

1175–1225; Middle English beasteliche, later be(e)stly. See beast, -ly

Related forms

beast·li·ness, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for beastly

British Dictionary definitions for beastly


/ (ˈbiːstlɪ) /

adjective -lier or -liest

informal unpleasant; disagreeable; nastybeastly weather
obsolete of or like a beast; bestial


informal (intensifier)the weather is so beastly hot

Derived Forms

beastliness, noun
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