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- Washington was no less a commanding presence than ever, and except for his raging outburst at Kips Bay, he seemed imperturbable, entirely in control.p. 226.2
- WASHINGTON IS SAID TO HAVE WEPT as he watched the tragedy unfold from across the river, and though this seems unlikely, given his well-documented imperturbability, he surely wept within his soul.p. 244.3
There are no more uses of "imperturbable" in 1776.
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