1conviction
a fixed/strong belief or opinion
2dogged
stubbornly persistent in effort
3dogmatic
dictatorial; opinionated; intolerant
4incumbent
imposed as a duty; obligatory; necessary
5inherent
hereditary; deep-rooted; built-in
6innate
possessed from brith; inherited; native
7intrepid
courageous; fearless; heroic
8inveterate
long-standing; established; habitual
9malleable
easily shaped or formed; easily influenced
10maverick
one who is independent and resists adherence to a group; extremist; nonconformist
11obdurate
stubborn; relentless; immovable
12obstinate
stubbornly determined; pig-headed
13omnipotent
all-powerful; almight; godlike
14profound
having great depth or seriousness
15tenacity
persistence; guts; perseverance