The Collaborative International Dictionary of English v.0.48:

Lovely \Love"ly\, adv.
   In a manner to please, or to excite love. [Obs. or R.]
   --Tyndale.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Lovely \Love"ly\, a. [Compar. Lovelier; superl. Loveliest.]
   [AS. luflic.]
   1. Having such an appearance as excites, or is fitted to
      excite, love; beautiful; charming; very pleasing in form,
      looks, tone, or manner. "Lovely to look on." --Piers
      Plowman.
      [1913 Webster]

            Not one so fair of face, of speech so lovely.
                                                  --Robert of
                                                  Brunne.
      [1913 Webster]

            If I had such a tire, this face of mine
            Were full as lovely as is this of hers. --Shak.
      [1913 Webster]

   2. Lovable; amiable; having qualities of any kind which
      excite, or are fitted to excite, love or friendship.
      [1913 Webster]

            A most lovely gentlemanlike man.      --Shak.
      [1913 Webster]

   3. Loving; tender. [Obs.] "A lovely kiss." --Shak.
      [1913 Webster]

            Many a lovely look on them he cast.   --Chaucer.
      [1913 Webster]

   4. Very pleasing; -- applied loosely to almost anything which
      is not grand or merely pretty; as, a lovely view; a lovely
      valley; a lovely melody.
      [1913 Webster]

            Indeed these fields
            Are lovely, lovelier not the Elysian lawns.
                                                  --Tennyson.

   Syn: Beautiful; charming; delightful; delectable; enchanting;
        lovable; amiable.
        [1913 Webster]

WordNet (r) 3.0 (2006):

lovely
    adj 1: appealing to the emotions as well as the eye
    2: lovable especially in a childlike or naive way [syn:
       adorable, endearing, lovely]
    n 1: a very pretty girl who works as a photographer's model
         [syn: cover girl, pin-up, lovely]

Moby Thesaurus II by Grady Ward, 1.0:

82 Moby Thesaurus words for "lovely":
   admirable, adorable, aesthetic, aesthetically appealing, agreeable,
   alluring, angelic, appealing, attractive, beaut, beauteous,
   beautiful, bewitching, bonny, captivating, caressable, charming,
   comely, cuddlesome, dainty, delectable, delicate, delightful,
   elegant, enchanting, endowed with beauty, engaging, enjoyable,
   enravishing, enthralling, enticing, entrancing, exquisite,
   eye-filling, eyeful, fair, fascinating, fetching, fine, flowerlike,
   good-looking, gorgeous, graceful, gracile, gratifying, handsome,
   heart-robbing, heavy, intriguing, inviting, irresistible, kissable,
   knockout, likable, looker, lovable, lovesome, luxurious, nice,
   pleasant, pleasing, pleasurable, prepossessing, pretty,
   pulchritudinous, rare, ravishing, satisfactory, satisfying,
   sensuous, seraphic, stunner, sweet, taking, tantalizing, tempting,
   thrilling, titillative, voluptuous, winning, winsome, witching