അർത്ഥം : Stubbornly unyielding.
							ഉദാഹരണം : 
							Dogged persistence.
							Dour determination.
							The most vocal and pertinacious of all the critics.
							A mind not gifted to discover truth but tenacious to hold it.
							Men tenacious of opinion.
							
പര്യായപദങ്ങൾ : dogged, dour, persistent, tenacious, unyielding