jiān​rèn HSK7

tough and durable

坚韧 堅韌 jiān​rèn
tough and durable adjective
strong and resilient in material or structure, such as wood or leather

The tough hide is difficult to cut, even with a knife.

tenacious
persistent, firm, and unyielding in character or will

Frequency

Movie subtitles
1.22 per million appears in 1% of films
Written text
4.19 per million

Details

HSK 2.0
Level 6
HSK 3.0
Level 7

Sources