即そっ効こう

そ

っ

こ

う

Common wordFreq.FrequencyTop 20,000

Meanings

1

immediate effect; instant effect

Describes something that takes effect right away, often used for medicines, measures, or solutions.

この薬くすりは即そっ効こうがある。
This medicine has an immediate effect.
即そっ効こう性せいのある対たい策さくが求もとめられている。
Measures with immediate effect are being called for.

Usage patterns

〈物もの〉に即そっ効こう性せいがあるfor something to have an immediate effect
この薬くすりには即そっ効こう性せいがある。
This medicine has an immediate effect.
即そっ効こうで〈動どう詞し〉for something to happen instantly
頭ず痛つうが即そっ効こうで治なおった。
My headache went away instantly.

Kanji

即instant, namely, as is
効merit, efficacy, efficiency
功achievement, merits, success

Related words

効こう果かN3
効果 is the general word for 'effect' regardless of speed, whereas 即効 specifically means the effect happens instantly.

Opposites

遅ち効こう
即効 describes an effect that appears right away, while 遅効 describes one that takes time to appear.

Don't confuse with

速そっ効こう
即効 and 速効 are both read そっこう and both mean a fast-acting effect, but 即効 stresses instantaneous action while 速効 stresses quick action, so they're easy to mix up in writing.

Word family

即そっ効こう性せい
immediate effectiveness; quick-acting
即そっ効こう薬やく
quick-acting remedy; fast-acting medicine

Written forms

即そっ効こうUsage100%
Standard kanji spelling; common in news and everyday contexts.
即そっ功こう
Rare variant; 功 suggests 'result' or 'effect' but is much less common than 効.

Etymology

Compound of 即 (immediate) and 効 (effect). The reading そっこう is a regular on'yomi combination.