The Collaborative International Dictionary of English v.0.48:

Rubicund \Ru"bi*cund\, a. [L. rubicundus, fr. rubere to be red,
   akin to ruber red. See Red.]
   Inclining to redness; ruddy; red. "His rubicund face."
   --Longfellow.
   [1913 Webster]

WordNet (r) 3.0 (2006):

rubicund
    adj 1: inclined to a healthy reddish color often associated with
           outdoor life; "a ruddy complexion"; "Santa's rubicund
           cheeks"; "a fresh and sanguine complexion" [syn:
           rubicund, ruddy, florid, sanguine]

Moby Thesaurus II by Grady Ward, 1.0:

81 Moby Thesaurus words for "rubicund":
   Titian, Titian-red, blooming, blowzed, blowzy, bricky, burnt,
   cardinal, carmine, carnation, carnelian, cerise, cherry,
   cherry-colored, cherry-red, crimson, damask, ferruginous, fiery,
   fire-red, flame-colored, flame-red, flaming, florid, flush,
   flushed, full-blooded, glowing, gules, hectic, hot, incarmined,
   inflamed, infrared, iron-red, lake-colored, laky, lateritious,
   lobster-red, lurid, maroon, port-wine, puce, red, red-complexioned,
   red-dyed, red-faced, red-fleshed, red-looking, reddened, reddish,
   reddish-amber, reddish-brown, rosy, rosy-cheeked, rubiginous,
   rubric, rubricose, ruby, ruby-colored, ruby-red, ruddied, ruddy,
   ruddy-complexioned, ruddy-faced, rufescent, rufous, rust, rust-red,
   rusty, sanguine, scarlet, stammel, sunburned, tile-red, vermilion,
   vinaceous, warm, wine, wine-colored, wine-red