Untested and Off

untested

Not tried or tested by experience.
- usage: "unseasoned artillery volunteers"; "still untested in battle"; "an illustrator untried in mural painting"; "a young hand at plowing"
- synonyms: unseasoned, untried, young
Not yet proved or subjected to testing.
- usage: "an untested drug"; "untested theory"; "an untried procedure"
- synonyms: untried

off

Kill intentionally and with premeditation.
- usage: "The mafia boss ordered his enemies murdered"
- synonyms: murder, slay, hit, dispatch, bump off, polish off, remove

Not in operation or operational.
- usage: "the oven is off"; "the lights are off"
Below a satisfactory level.
- usage: "an off year for tennis"; "his performance was off"
Of events. ( no longer planned or scheduled)
- usage: "the wedding is definitely off"
- synonyms: cancelled
In an unpalatable state.
- usage: "sour milk"
- synonyms: sour, turned
Not performing or scheduled for duties.
- usage: "He's off every Tuesday"

From a particular thing or place or position (`forth' is obsolete. )
- usage: "ran away from the lion"; "wanted to get away from there"; "sent the children away to boarding school"; "the teacher waved the children away from the dead animal"; "went off to school"; "they drove off"; "go forth and preach"
- synonyms: away, forth
At a distance in space or time)
- usage: "the boat was 5 miles off (or away)"; "the party is still 2 weeks off (or away. "; "away back in the 18th century"
- synonyms: away
No longer on or in contact or attached.
- usage: "clean off the dirt"; "he shaved off his mustache"

(adv.) Denoting a different direction; not on or towards: away; as, to look off.
(n.) The side of the field that is on the right of the wicket keeper.
(interj.) Away; begone; -- a command to depart.
(prep.) Not on; away from; as, to be off one's legs or off the bed; two miles off the shore.
(a.) On the farther side; most distant; on the side of an animal or a team farthest from the driver when he is on foot; in the United States, the right side; as, the off horse or ox in a team, in distinction from the nigh or near horse or ox; the off leg.
(adv.) In a general sense, denoting from or away from; as:.
(adv.) Denoting the action of removing or separating; separation; as, to take off the hat or cloak; to cut off, to pare off, to clip off, to peel off, to tear off, to march off, to fly off, and the like.
(adv.) Denoting distance or separation; as, the house is a mile off.
(adv.) Denoting a leaving, abandonment, departure, abatement, interruption or remission; as, the fever goes off; the pain goes off; the game is off; all bets are off.
(adv.) Denoting opposition or negation.
(a.) Designating a time when one is not strictly attentive to business or affairs or is absent from his post, and, hence, a time when affairs are not urgent; as, he took an off day for fishing: an off year in politics.

Webster's Revised Unabridged Dictionary