effective

(combine) Same-ON + (strong)
★★★☆☆
8 strokes
DUPE

Onyomi

KOU

COLONS are very effective for discharging waste.

Mnemonic

If you combine the strong points of various techniques, you will get the most effective style!

Kunyomi

( xxxが ) き*く xxx is effective, most often said about medicine or drugs.
★★★★☆

Jukugo

効果的(こうかてき)

effective ★★★☆☆
(an effect) + (motivation / '-al') = 効果的 (effective)

効果(こうか)

an effect ★★★☆☆
(effective) + (fruit / result) = 効果 (an effect)

効率 が いい(こうりつ が いい)

efficient ★★☆☆☆
(effective) + (ratio) = 効率 が いい (efficient)

逆効果(ぎゃくこうか)

the opposite effect ☆☆☆☆☆
(opposite) + (an effect) = 逆効果 (the opposite effect )

the opposite effect from what you'd intended.

Synonyms

to be effective
効く    利く