Last Updated：2025/11/19

(uncountable) The ability or power to be effective. / (countable) A measure of the effectiveness of something.

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effectivity

Source Word

effectivity

Noun

uncountable countable

(uncountable) The ability or power to be effective. / (countable) A measure of the effectiveness of something.

Japanese Meaning

（不可算）効果が現れる能力、つまり有効である性質や有効性を指す。 / （可算）何かの効果の程度やその効果を測る尺度、指標としての意味。

The effectivity of the new training program was difficult to measure, but employees reported improved confidence and performance.

新しい研修プログラムの有効性を測定するのは難しかったが、従業員は自信と業務成績の向上を報告した。

Sense（1）

(uncountable) The ability or power to be effective.

Sense（2）

(countable) A measure of the effectiveness of something.

Sense（3）

effectivities

（ plural ）