Not making concessions
English: uncompromising, sturdy, inflexible
Bahasa: kuat, tangguh, kokoh, kaku, pagan, tegap, agam, bergas
sturdyEnglish
sturdy, hardy, inflexible, stalwart, stout
Adjective
Having rugged physical strength, inured to fatigue or hardships
English: hardy, stalwart, stout, sturdy
Substantially made or constructed
English: sturdy, tough