beamy /ˈbiːmi/ adjective5 •Showing or emitting rays of light; beaming; radiant; shining. •(figurative) Radiant; beamsome; joyous; gladsome. •Having much beam or breadth; wide. •Resembling a beam in size and weight; massy. •(no longer used) Having horns or antlers.beamy stags formsbeamier · beamiest