11 letters · 20 points in Scrabble
adjective not sanitary or healthful
adjective detrimental to good health
adjective detrimental to health
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 healthful English unhealthful From un- + healthful.
Etymology from Wiktionary, CC BY-SA 3.0