To strengthen through experience or hardship; toughen:
To melt something, such as metal or glass, by heating.
(Ergative) To make something hard or harder (tough, resistant to pressure).
Find another word for anneal. In this page you can discover 8 synonyms, antonyms, idiomatic expressions, and related words for anneal, like: toughen, temper, subject to high heat, strengthen, fuse, harden, heat and normalize.