頑 - stubborn, foolish, firmly

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

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

stubborn; obstinate; pigheaded

tenacity; endurance

stubborn person; obstinate person; pig-headed person

someone who battles on in difficult circumstances

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

robust; fit and healthy; strong; sturdy

ringworm (of the groin); jock itch; tinea cruris