little power; little influence
Neutral description of having only a small amount of power or influence. Often used in objective statements.
彼は会社で微力な立場にいる。
He holds a position of little influence in the company.
one's meager ability; what little one can do
Humble expression used to downplay one's own ability or contribution. Common in formal self-deprecating phrases like 微力ながら (though I am of little ability).
微力ながら、お手伝いさせていただきます。
Though I am of little ability, please allow me to help.
私の微力では、この問題を解決できません。
With my limited ability, I cannot solve this problem.
to the best of my limited ability; though I may not be of much help
Compound of 微 (small, slight) and 力 (power, ability). The humble usage developed from the literal meaning of 'small power' applied to one's own capabilities.