IPA: /ʌnˈtraɪd/
KK: /ʌnˈtraɪd/
Something that has not been tested or proven through experience or trial.
The untried method may lead to unexpected results.
Untried → It is formed from "un-" (meaning not) and "tried" (from Old French *trier*, meaning to sort or test). The word "untried" means not tested or not having been put to the test.
Think of something that has not been 'tested' ('tried') — the 'un-' means not, so untried refers to something that hasn't been tested yet.