beasterly UK /ˈbiː.stə.li/US /ˈbiː.stɚ.li/ adjective1 •(informal) Of the wind: cold, unpleasant, and from the east.The ordinary English bee is generally tolerably well-behaved, but not always so, and is occasionally perfectly furious, especially if the wind is "beasterly." — 1886 formsmore beasterly · most beasterly