harshly uninviting or formidable in manner or appearance; "a dour, self-sacrificing life"; "a forbidding scowl"; "a grim man loving duty more than humanity"; "undoubtedly the grimmest part of him was his iron claw"- J.M.Barrie
generally approved or compelling recognition; "several accepted techniques for treating the condition"; "his recognized superiority in this kind of work"
generally agreed upon; not subject to dispute; "the accepted interpretation of the poem"; "an accepted theory"; "the undisputed fact"
widely accepted as true or worthy; "the accepted wisdom about old age"; "a received moral idea"; "Received political wisdom says not; surveys show otherwise"- Economist
widely or permanently accepted; "an accepted precedent"
generally accepted or used; "accepted methods of harmony and melody"; "three accepted types of pump"