adamantine
Contents
English Expression
  1. adj.:  adamantine,  categorical,  emphatic,  flat,  positive,  pronounced,  resolute,  resolved,  round,  utter
Thesaurus
flat, implicit, formidable, not sparing the feelings of others, cruel
Containing Phrases
flatnessa ,point-blank re`fusaldecisive measures
an emphatic deniallower the boom (on)shadow boxing