あっけない

i-adjective

unsatisfying; disappointing; over too soon

Describes something that ends too quickly or easily, leaving a feeling of disappointment or lack of fulfillment. Often used for events, endings, or outcomes that feel anticlimactic.

• 試し合あいはあっけなく終おわってしまった。

  The match ended disappointingly quickly.

• 彼かれ