treated vs tempered

treated and tempered both are adjectives.

Word	Noun	Adjective	Verb	Adverb
treated	No	Yes	No	No
tempered	No	Yes	No	No

As adjectives, treated and tempered are synonyms defined as:

treated and tempered: made hard or flexible or resilient especially by heat treatment

Other synonyms of treated include hardened, toughened.

treated (adjective)	tempered (adjective)
subjected to a physical (or chemical) treatment or action or agent	adjusted or attuned by adding a counterbalancing element
given medical care or treatment	made hard or flexible or resilient especially by heat treatment
made hard or flexible or resilient especially by heat treatment