adjectives
characterized by great determination
"a struggle against a determined enemy"
is similar to
firm in purpose or belief; characterized by firmness and determination
"stood resolute against the enemy"; "faced with a resolute opposition"; "a resolute and unshakeable faith"
having been learned or found or determined especially by investigation
is similar to
discovered or determined by scientific observation
"variation in the ascertained flux depends on a number of factors"; "the discovered behavior norms"; "discovered differences in achievement"; "no explanation for the observed phenomena"
devoting full strength and concentrated attention to
"made continued and determined efforts to find and destroy enemy headquarters"
is similar to
tenaciously unwilling or marked by tenacious unwillingness to yield
determined or decided upon as by an authority
"date and place are already determined"; "the dictated terms of surrender"; "the time set for the launching"
strongly motivated to succeed