expression, ichidan verb
not amount to much; be nothing special; be limited
Used to downplay something, implying it is not as great, important, or numerous as one might think. Often follows a noun or clause marked with が or の.
彼の実力なんてたかが知れている。
His ability is nothing to write home about.
残りの時間はたかが知れているから、急
The remaining time is limited, so let's hurry.