despairing

epätoivoinen Feeling, expressing, or caused by despair; hopeless.
(present participle of)
A mood or display of despair.
(w)

But what things soever passed in him, when he ceased to see it; what ragings and despairings soever Teufelsdrockh's soul was the scene of, he has the goodness to conceal under a quite opaque cover of Silence.