Not perforated, as: / (medicine) Synonym of atretic

(philately) A postage stamp that has not been perforated.

Not penitent; specifically (Christianity), not repenting of one's sins; unrepentant.

One who is not penitent.

any speech disorder

(of a route, terrain, etc.) Incapable of being passed over, crossed, or negotiated. / (of an obstacle) Incapable of being overcome or surmounted. / (of currency) Not usable as legal tender.

Filled with intense emotion or passion; fervent.

simple past tense and past participle of impact

Having undergone an impact. / (dentistry) Of a tooth, subject to dental impaction. / (US, economics) Having lost property revenue due to Federal presence, such that it may receive impact aid.

(grammar) The imperfect tense in the subjunctive mood.