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For a foundation, system, or structure to become weaker over time due to natural deterioration or external factors.
年月を経て、古い橋の基礎が弱まってきた。
Over the years, the foundation of the old bridge has weakened.
経済成長が鈍化し、企業の基盤が弱まっている。
With the slowdown in economic growth, companies' foundations are weakening.
Often used metaphorically for systems, organizations, or skills that lose strength or stability over time.
While this phrase literally refers to physical foundations (e.g., of a building), it is frequently used metaphorically for abstract concepts like economic systems, corporate structures, or personal skills. Pay attention to context to determine the intended meaning.
If the subject is an abstract noun (e.g., 経済 'economy', 会社 'company', 体力 'physical strength'), the phrase is likely being used metaphorically. If the subject is a physical object (e.g., 建物 'building', 土台 'base'), it is literal.
基礎 (foundation) + が (subject marker) + 弱まる (to weaken). The phrase combines two native Japanese words to describe a literal or metaphorical weakening of a foundational element.
Commonly used in both literal contexts (e.g., construction, engineering) and abstract contexts (e.g., business, economics, personal skills). The metaphorical use implies a gradual loss of stability or effectiveness.