Pyrrhic
WordNet
adjective
(1) Of or relating to or resembling Pyrrhus or his exploits (especially his sustaining staggering losses in order to defeat the Romans)
"A Pyrrhic victory"
(2) Of or relating to or containing a metrical foot of two unstressed syllables
"Pyrrhic verses"
(3) Of or relating to a war dance of ancient Greece
"Pyrrhic dance movements"
noun
(4) An ancient Greek dance imitating the motions of warfare
(5) A metrical unit with unstressed-unstressed syllables