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.
This curry is on the spicy side.
This coffee has a fairly strong flavor.
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.
Please massage my shoulders a bit firmly.
弱い means 'weak' in a general sense, serving as the natural opposite of 強め's 'somewhat strong' nuance.
strengthen; intensify; emphasize
Derived from the adjective 強い (strong) by adding the suffix め, which indicates a tendency or degree. The suffix め attaches to the stem of adjectives to form nouns meaning 'somewhat ~' or 'on the ~ side'.