I lost by a narrow margin.
冷蔵庫にはわずかな食べ物しか残っていない。
There is only a little food left in the fridge.
adverb
only; just; merely; no more than
Adverbial use emphasizing a small quantity or degree, often with numbers or amounts. Can imply 'as little as' or 'a mere'.
完成までわずか3日しかない。
There are only three days left until completion.
彼はわずか10歳で大学に入学した。
He entered university at just ten years old.