traditional (adj)
Sens 1 : following or conforming to tradition: based on an order, code, or
practice accepted from the past: conventional. [source : MWU]
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Sens 2 : belonging to, consisting in, or of the nature of tradition; handed down
by or derived from tradition. [source : OED]
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Sens 3 : that is such according to tradition; asserted or related by tradition. [source : OED]