subpotency

/sʌbˈpoʊtənsi/
noun
  1. A state or condition of having less power, effectiveness, or strength than normal or expected.
    • Due to subpotency in the engine, the car struggled to climb steep hills.
    • The subpotency of the medication meant patients needed a higher dose to feel any effect.
    • The team's subpotency in the second half cost them the game.
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