Un*bos"om (?), v. t. [imp. & p. p. Unbosomed (?); p. pr. & vb. n. Unbosoming.] [1st pref. un- + bosom.]
To disclose freely; to reveal in confidence, as secrets; to confess; -- often used reflexively; as, to unbosom one's self.
Milton.
© Webster 1913.