STUBBORNNESSES
Scrabble letter values: S1T1U1B3B3O1R1N1N1E1S1S1E1S1 = 18
Definition
STUBBORNNESSES is the plural of STUBBORNNESS.
noun STUBBORNNESS: the trait of being difficult to handle or overcome.
Synonyms of STUBBORNNESS: obstinacy, obstinance, mulishness