13 letters · 20 points in Scrabble
adjective not likely to be rewarded
adjective having value that is not acknowledged
originEtymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Germanic *un- Proto-West Germanic *un- Old English un- Middle English un- English un- English appreciated English unappreciated From un- + appreciated.
Etymology from Wiktionary, CC BY-SA 3.0