tenacious; persevering; persistent; stubborn; steadfast
sticky
粘り強い姿勢で交渉を続けた結果、合意に至った。
By persisting with a tenacious approach, they reached an agreement.
あの選手は試合が終わるまで粘り強かった。
That athlete was persistently determined until the end of the match.
子供に粘り強く読み方を教えた。
I persistently taught the child how to read.