- untempered (adj.)
[untempered 词源字典]
- mid-15c., "not properly mixed, undiluted," from un- (1) "not" + past participle of temper (v.). Similar formation in Middle Dutch ongetempert, Middle High German ungetempert. Earlier as "unrestrained" (late 14c.), also, of a musical instrument, "not properly tuned;" meaning "unhardened" is from 1820.[untempered etymology, untempered origin, 英语词源]