jiān​gù HSK4

sturdy

坚固 (堅固) jiān​gù
sturdy adjective
physically strong, solid, and resistant to damage or collapse

This ancient bridge is still very sturdy.

firm adjective
stable and unshakable, often referring to an abstract foundation or position

Only by laying a solid foundation can one achieve success in their career.

Frequency

Movie subtitles
3.55 per million appears in 2% of films
Written text
5.17 per million

Details

HSK 2.0
Level 6
HSK 3.0
Level 4

Sources

Definitions
CC-CEDICT