思わず吹き出してしまった。

思わず吹き出してしまった。

I couldn't help laughing out.

思(おも)わず吹(ふだ)き出()してしまった。

Omowazu fukidashiteshimatta.

思わず (おもわず)

unintentionally; reflexively; spontaneously; involuntarily; instinctively

吹き出す (ふきだす)

to spout out; to spurt out; to gush out; to jet out; to sprout; to bud; to burst into laughter; to blow (smoke, etc.); to send out shoots (of a tree)

Readings: シ、おも.う、おもえら.く、おぼ.す

Meaning: think

Readings: スイ、ふ.く

Meanings: blow, breathe, puff, emit, smoke

Readings: シュツ、スイ、で.る、 -で、だ.す、 -だ.す、い.でる、い.だす

Meanings: exit, leave, go out, come out, put out, protrude