I.blunt, dulled, with the edge taken off, of a sharp instrument, Plat., etc.:—metaph. dull, dim, of sight, ἀμβλὺ ὁρᾶν, βλέπειν id=Plat.; of the feelings, ἀμβλυτέραι τῆι ὀργῆι with anger less keen, Thuc.; ἀμβλύτερον ποιεῖν τι less vigorous, id=Thuc.
2.in Aesch. Eum. of Orestes, having lost the edge of guilt: but of persons, generally, dull, spiritless, having lost the keenness of one's feelings, Thuc.
II.act. darkening, of a cloud, Anth. Hence