The Collaborative International Dictionary of English v.0.48:

Remittent \Re*mit"tent\ (r?-m?t"tent), a. [L. remittens, p. pr.
   : cf. F. r['e]mittent.]
   Remitting; characterized by remission; having remissions.
   [1913 Webster]

   Remittent fever (Med.), a fever in which the symptoms
      temporarily abate at regular intervals, but do not wholly
      cease. See Malarial fever, under Malarial.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

decreased \decreased\ adj.
   made less in size or amount or degree. Opposite of
   increased. [Narrower terms: attenuate, attenuated, faded,
   weakened; belittled, diminished, small; cut, cut-rate;
   diminished, lessened; minimized; remittent;
   attenuated]

   Syn: reduced.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

remittent
    adj 1: (of a disease) characterized by periods of diminished
           severity; "a remittent fever"