ADJECTIVE (1)

1. affectedly dramatic; overacted;

Moby Thesaurus II by Grady Ward, 1.0:

43 Moby Thesaurus words for "hammy":
   actor-proof, all-star, ballet, balletic, cinematic,
   cinematographic, dramatic, dramatical, dramaturgic, emotionalistic,
   emotive, film, filmic, ham, histrionic, hysteric, legitimate,
   melodramatic, milked, monodramatic, movie, nonrational, operatic,
   overacted, overemotional, overplayed, scenic, sensational,
   sensationalistic, spectacular, stagelike, stageworthy, stagy,
   starstruck, stellar, theaterlike, theatrical, thespian,
   thrown away, underacted, underplayed, unreasoning, vaudevillian