fixed in direction; steadily directed

a steadfast gaze.

firm in purpose, resolution, faith, attachment, etc., as a person

a steadfast friend.

unwavering, as resolution, faith, adherence, etc.

firmly established, as an institution or a state of affairs.

firmly fixed in place or position.

adjective

disloyal , unreliable , untrustworthy

adjective

abiding , adamant , allegiant , ardent , bound , changeless , constant , dedicated , dependable , enduring , established , faithful , fast , firm , fixed , immobile , immovable , inexorable , inflexible , intense , intent , liege , never-failing , obdurate , persevering , relentless , reliable , resolute , rigid , single-minded , stable , staunch , stubborn , sure , tried-and-true * , true , true-blue * , unbending , unfaltering , unflinching , unmovable , unqualified , unquestioning , unswerving , unwavering , unyielding , wholehearted , stationary , steady , unmoving , steady-going , determined , stiff , tough , uncompromising , loyal , stanch , tenacious , unchanging , unflagging , unshaken