The Collaborative International Dictionary of English v.0.48:

Tearful \Tear"ful\, a.
   Abounding with tears; weeping; shedding tears; as, tearful
   eyes. -- Tear"ful*ly, adv. -- Tear"ful*ness, n.
   [1913 Webster]

WordNet (r) 3.0 (2006):

tearful
    adj 1: filled with or marked by tears; "tearful eyes"; "tearful
           entreaties" [ant: dry-eyed, tearless]
    2: showing sorrow [syn: dolorous, dolourous, lachrymose,
       tearful, weeping]

Moby Thesaurus II by Grady Ward, 1.0:

37 Moby Thesaurus words for "tearful":
   aggrieved, anguished, blubbering, careworn, crying,
   dissolved in tears, doleful, dolorous, dumb with grief,
   grief-stricken, griefful, grieved, grievous, in grief, in tears,
   lachrymal, lachrymose, lacrimatory, lamentable, lugubrious,
   mournful, plaintive, plangent, plunged in grief, ready to cry,
   rueful, sniveling, sobbing, sorrowed, sorrowful, sorrowing, teary,
   weeping, weepy, whimpering, with eyes suffused, woeful