In a constrained manner, showing constraint(adverb)
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Use "constrainedly" in a sentence
"With an abashed kind of idea that it might have already joined himself to something he had never seen, he said constrainedly: “Just so.”"
"Again the metaphysical fine detail is less important that the fact that we get by most of the time with constrainedly inexact similarity."
"‘Mrs. Barnet was very well when I left home,’ the other answered constrainedly, exchanging his meditative regard of the horse for one of self-consciousness."