1. 
1. 
[syn: arthritic, creaky, rheumatic, rheumatoid, rheumy]
The Collaborative International Dictionary of English v.0.48:
Arthritic \Ar*thrit"ic\, Arthritical \Ar*thrit"ic*al\, a. [L.
   arthriticus, Gr. 'arqritiko`s. See Arthritis.]
   1. Pertaining to the joints. [Obs.] --Sir T. Browne.
      [1913 Webster]
   2. Of or pertaining to arthritis; gouty. --Cowper.
      [1913 Webster]
   3. afflicted with arthritis.
   Syn: creaky, rheumatic, rheumatoid.
        [WordNet 1.5 +PJC]
WordNet (r) 3.0 (2006):
arthritic
    adj 1: of or pertaining to arthritis; "my creaky old joints";
           "rheumy with age and grief" [syn: arthritic, creaky,
           rheumatic, rheumatoid, rheumy]
    n 1: a person afflicted with arthritis; "the hands of an elderly
         arthritic"
Moby Thesaurus II by Grady Ward, 1.0:
53 Moby Thesaurus words for "arthritic":
   allergic, anemic, apoplectic, bilious, cancerous, case, chlorotic,
   colicky, consumptive, dropsical, dyspeptic, edematous,
   encephalitic, epileptic, incurable, inpatient, invalid, laryngitic,
   leprous, luetic, malarial, malignant, measly, nephritic, neuralgic,
   neuritic, outpatient, palsied, paralytic, patient, phthisic,
   pleuritic, pneumonic, pocky, podagric, rachitic, rheumatic,
   rickety, scorbutic, scrofulous, shut-in, sick person, spastic,
   sufferer, tabetic, tabid, terminal case, the sick, tubercular,
   tuberculous, tumorigenic, tumorous, valetudinarian