overkill

English Thesaurus

1. any effort that seems to go farther than would be necessary to achieve its goal (noun.act)

hypernym	:	effort, elbow grease, exertion, sweat, travail,
definition	:	use of physical or mental energy; hard work (noun.act)

2. the capability to obliterate a target with more weapons (especially nuclear weapons) than are required (noun.attribute)

hypernym	:	capability, capableness,
definition	:	the quality of being capable -- physically or intellectually or legally (noun.attribute)