頑 - stubborn, foolish, firmly

obstinate; stubborn; mulish; die-hard; bigoted

to persevere; to persist; to keep at it; to hang on; to hold out; to do one's best

stubborn; dogged; persistent; tenacious

solid; firm; stout; burly; strong; sturdy

do your best; go for it; hang in there; keep at it

stubborn; obstinate; pigheaded

tenacity; endurance

headstrong; obstinate; bullheaded

stubborn (obstinate) father; pig-headed old man

stubbornly; firmly; determinedly; obstinately; resolutely; adamantly

an extra effort; going the extra mile; one final push

resolute; obstinate; stubborn