RETENTIVENESSES
Scrabble letter values: R1E1T1E1N1T1I1V4E1N1E1S1S1E1S1 = 18
Definition
RETENTIVENESSES is the plural of RETENTIVENESS.
noun RETENTIVENESS: the power of retaining and recalling past experience.
Synonyms of RETENTIVENESS: memory, retention, retentivity