pure; not mixed or adulterated with anything / utter or out-and-out, especially in the phrase unadulterated truth

Not adulterous.

In an unadulterous way.

(archaic) Not adulterated; pure.

The state of not being adulterated.

That cannot be adulterated.

(archaic) In an unadulterate manner.

Without adulteration.

(rare) State or quality of not being adulterated.