noun which may take the genitive case particle 'no', na-adjective
somewhat strong; fairly strong; on the strong side
Describes something that is stronger, firmer, or more intense than average, but not extremely so. Often used to modify nouns like 味 (flavor), 風 (wind), 口調 (tone), etc.
このカレーは強めの辛さだ。
This curry is on the spicy side.
今日は風が強めだから、洗濯物が飛ばされそう。
The wind is fairly strong today, so the laundry might blow away.