Chinese character 嬍

Yes. 嬍 is a rare variant of 美. Chinese dictionaries equate them; older glosses of 美 also include “sweet.” 美 is the familiar written form, while 嬍 appears mainly in dictionaries and classical writing.

The written record for 美 reaches at least the Shang and Western Zhou periods: it appears in inscriptions on oracle bones—bones used in divination—and on bronze objects. This dates the evidence for 美, not the variant 嬍. The classical Chinese collection 丹崖集 uses 有嬍一士 to praise a man, showing 嬍 in literary use.