いぜん以前izen
1.

A point in time that is earlier than the present, often referring to a significant past period or event that serves as a reference for comparison.

2.

The state of being prior to a specific moment or situation, which often emphasizes a comparison or transition to later developments.

3.

A time that is considerably distant from the current moment, usually indicating a memory or event from long ago.

4.

The condition of not having reached a certain level or stage, often implying a critique of being unprepared or lesser in experience compared to what is expected.

Example:

最善を尽くしますが、よくいっても木曜以前に終える事は出来ません。

いぜん以前izenni
1.

A term used to indicate a point in time that occurred at an earlier moment compared to the present or another specified time.

2.

Referring to a situation or condition that existed prior to the current circumstances or events.

3.

An expression that signifies something that took place in the past, particularly when making comparisons or establishing a timeline.

4.

Used to connect events or actions in discourse, emphasizing their precedence over other events in a narrative or discussion.

ゆうしいぜん有史以前yuushiizen
1.

The period of human history before the advent of written records and documented events.

2.

The time frame in which human activities occurred without the availability of historical texts, encompassing the development of early civilizations and cultures.

3.

An era characterized by archaeological findings that provide insights into the lives of humans before they could record their own history through writing.

4.

A stage in human history marked by the absence of literature or written accounts, relying instead on oral traditions and physical artifacts to understand past societies.