adj. 25B6; adjective
overpowering grief : OVERWHELMING, oppressive, unbearable, unendurable, intolerable, shattering.
an overpowering smell : STIFLING, suffocating, strong, pungent, powerful; nauseating, offensive, acrid, fetid, mephitic.
overpowering evidence : IRREFUTABLE, undeniable, indisputable, incontestable, incontrovertible, compelling, conclusive.