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Webster 1913 Edition

adv.

In a profound manner.

Why sigh you so

profoundly

Shakespeare

adv.

Deeply; with deep concern.

Why sigh you so profoundly?

With deep penetration into science or learning; with deep knowledge or insight; as profoundly wise; profoundly skilled in music or painting.

profoundly ‎(comparative more profoundly, superlative most profoundly)

(manner) With depth, meaningfully.
He thought and wrote profoundly.
(evaluative) Very importantly.
More profoundly, it has shaken our most fundamental assumptions.
(degree) Deeply; very.
From his childhood, she was profoundly troubled.

in a profound manner

deeply — see deeply