精一杯

せいいっぱい

the best one can do; one's best effort; with all one's might; to the best of one's ability

common word Also written 精いっぱい

Meaning

n
the best one can do; one's best effort
adv
with all one's might; to the best of one's ability; as hard as possible

Example sentences

立っているのが精一杯だった。

It was all I could do to keep standing.
彼女は彼が精一杯のおめかしをしてきたのを見て、ウフッと笑った。

When she saw the lengths he'd gone to to get all dressed up, she couldn't help letting a brief chuckle escape.
彼女は彼が去っていくのを見るだけで精一杯だった。

All she could do was watch him walk away.