STEALTHINESSES
Scrabble letter values: S1T1E1A1L1T1H4I1N1E1S1S1E1S1 = 17
Definition
STEALTHINESSES is the plural of STEALTHINESS.
noun STEALTHINESS: a disposition to be sly and stealthy and to do things surreptitiously.
Synonyms of STEALTHINESS: furtiveness, sneakiness