uncontrollable + -ly

source: cobra starship literally my favorite band in 2008 GIF by mtv - Find & Share on GIPHY

in a way that cannot be controlled or restrained:

抑制できない, 止められない〈感情･行動など〉

e.g. Daniel fell to the ground, sobbing uncontrollably

e.g. my hands started to shake uncontrollably.