Adjective. untarnishable (not comparable) Not tarnishable.

Is untarnishable a word?

un·tar·nish·able.

Where does the word tarnish come from?

tarnish (v.)

ternishen, "become tarnished; discolor," from Old French terniss-, present-participle stem of ternir "dull the luster or brightness of, make dim" (15c.), probably from terne (adj.)