The Collaborative International Dictionary of English v.0.48:

Banality \Ba*nal"i*ty\, n.; pl. Banalities. [F. banalit['e].
   See Banal.]
   Something commonplace, hackneyed, or trivial; the
   commonplace, in speech.
   [1913 Webster]

         The highest things were thus brought down to the
         banalities of discourse.                 --J. Morley.
   [1913 Webster]

WordNet (r) 3.0 (2006):

banality
    n 1: a trite or obvious remark [syn: platitude, cliche,
         banality, commonplace, bromide]