This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Not overtly impressive; unremarkable; nondescript: an unprepossessing little hotel.

adj. unimpressive or unremarkable; dull and ordinary; nondescript.

Not prepossessing; not attractive or engaging; unpleasing: as, a person of unprepossessing appearance.

adj. creating an unfavorable or neutral first impression

"And certain unprepossessing countries in even less prepossessing regions — Venezuela, Costa Rica, Russia, South Africa, and Tanzania — are acquiring brave, plucky innovators."

unattractive   

quotenbc    unlived-in    250-300    copper-tinted    punched-out