強弱|きょうじゃくkyoujaku[1]atamadaka (head-high)

1. nounstrength and weakness; (degree of) strength
2. nounstress (of a sound); loudness

• Related強さつよさNeutralRefers only to how strong something is, as in 「風の強さ」— a single degree of strength. 「強弱」 looks at the contrast or variation between strong and weak.
• Related強度きょうどNeutralA measure of degree — how much load or stress something can take, or how intense activity is, as in 「耐震強度」「低強度の運動」. 「強弱」 stresses the strong-weak contrast.

Use 「強弱」 for the interplay of strong and weak or their degrees, as in 「強弱をつける」「音の強弱」. For a single degree of strength use 「強さ」 or 「強度」; the opposites are 「均一」 and 「一律」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 強つよいことと弱よわいこと。
2. 強つよさ弱よわさの程度ていど。