acutely

250 hours later -- and after a lot of heavy lifting -- I found that the Miura-ori with the smallest and least acutely-angled panels made out of the lightest paper had the greatest strength-to-weight ratio.

It might be something that we find ourselves actively doing that collapses our spirits, or we start to worry acutely about a matter that suddenly enters our minds or an incident occurs from out of the blue that unsettles us.