あれしき

noun which may take the genitive case particle 'no', noun

so trifling; so trivial; that little

Expresses that something is so small, insignificant, or trivial that it is not worth worrying about. Often used dismissively or to downplay a matter.

• あれしきのことで怒おこるなんて、大人おとなげない。

  Getting angry over such a trifling matter is childish.

• あれしきの雨あめなら、傘かさはいらないよ。

  If it's just that little rain, I don't need an umbrella.