that cannot be moved; not able, refusing to be affected or changed

fixed, stubborn

not easily agreeing to an argument or being persuaded; stubborn

stubborn, determined

often expressing (too much) confidence in one's own opinion

believing very strongly and conveying it

stiff; that cannot be bent; firm; strict; not changing

stiff, strict, severe

decided and fixed; (of opinions, habits etc) fixed and not to be changed; unmoving; a group of games (in tennis etc); a group of similar things; the position (of the body, clothes etc)

decided