aorist

n. verb tense in classical Greek and in other languages that expresses a past action without specifying if the action is completed or continuing

adj. in the aorist tense; of or relating to the aorist tense; relating to a verb tense that expresses a past action without specifying if the action is completed or continuing

Aorist (from Greek αοριστός, indefinite or unlimited) is a term used in certain Indo-European languages to refer to a particular grammatical tense and/or aspect. It is used to denote action in the past, but is distinguished from the imperfect and perfect; it is similar to the preterite in languages such as Spanish.
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Noun
1. a verb tense in some languages (classical Greek and Sanskrit) expressing action (especially past action) without indicating its completion or continuation
(hypernym) tense

n. aorist

(n.)
A tense in the Greek language, which expresses an action as completed in past time, but leaves it, in other respects, wholly indeterminate.