A1S1S1I1D2U1O1U1S1N1E1S1S1E1S1
16 points
ASSIDUOUSNESSES is validvalid
ASSIDUOUSNESS, the quality of being assiduous [n]
ASSIDUOUSNESS, the state of being assiduous [n]
ASSIDUOUSNESS, the quality of being assiduous [n]
ASSIDUOUSNESS, the state of being assiduous [n]