Both Uses of

boisterous
in
Henry IV, Part 2

You, lord archbishop, Whose see is by a civil peace maintain'd, Whose beard the silver hand of peace hath touch'd, Whose learning and good letters peace hath tutor'd, Whose white investments figure innocence, The dove and very blessed spirit of peace, Wherefore you do so ill translate yourself Out of the speech of peace that bears such grace, Into the harsh and boisterous tongue of war; Turning your books to graves, your ink to blood, Your pens to lances and your tongue divine To a loud trumpet and a point of war?†
Scene 4.1 *

It seem'd in me But as an honour snatch'd with boisterous hand, And I had many living to upbraid My gain of it by their assistances; Which daily grew to quarrel and to bloodshed, Wounding supposed peace: all these bold fears Thou see'st with peril I have answered; For all my reign hath been but as a scene Acting that argument: and now my death Changes the mode; for what in me was purchased, Falls upon thee in a more fairer sort; So thou the garland wear'st successively.†
Scene 4.5

Definition:

excessively noisy and unrestrained