1.
latent strength; hidden reserves of power
Strength that is not visible in ordinary circumstances but emerges under pressure. Used of individuals, teams, companies, and economies alike, always with admiration.
Pronunciation
The second element is voiced to ぢから, not ちから — one of the few common words that keeps the ぢ spelling in modern orthography.
Common collocations
- 底力を発揮する: to display one's latent strength
- 底力を見せる: to show what one is really made of
- 日本経済の底力: the underlying strength of the Japanese economy
Usage
The word implies adversity: it is used when strength appears in a pinch, so it fits comebacks, late rallies, and recoveries rather than steady everyday performance.
Related Words
Compare:
総合力 (overall ability)