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 19 synonyms, antonyms, idiomatic expressions, and related words for anneal, like: temper, toughen, subject to high heat, strengthen, fuse, harden, heat, normalize, heat-treatment, recrystallisation and nitriding.