Source : WordNet®

randomness
     n 1: (thermodynamics) a thermodynamic quantity representing the
          amount of energy in a system that is no longer available
          for doing mechanical work; "entropy increases as matter
          and energy in the universe degrade to an ultimate state
          of inert uniformity" [syn: {entropy}, {S}]
     2: the quality of lacking any predictable order or plan [syn: {haphazardness},
         {stochasticity}, {noise}]

Source : Free On-Line Dictionary of Computing

randomness
     
        1. An inexplicable misfeature; gratuitous inelegance.
     
        2. A {hack} or {crock} that depends on a complex combination
        of coincidences (or, possibly, the combination upon which the
        crock depends for its accidental failure to malfunction).
        "This hack can output characters 40--57 by putting the
        character in the four bit accumulator field of an XCT and then
        extracting six bits - the low 2 bits of the XCT opcode are
        the right thing."  "What randomness!"
     
        3. Of people, synonymous with "flakiness".  The connotation is
        that the person so described is behaving weirdly,
        incompetently, or inappropriately for reasons which are (a)
        too tiresome to bother inquiring into, (b) are probably as
        inscrutable as quantum phenomena anyway, and (c) are likely to
        pass with time. "Maybe he has a real complaint, or maybe it's
        just randomness.  See if he calls back."
     
        [{Jargon File}]