successively; one after another; sequentially
Describes actions or events occurring in order, one by one, without skipping. Often used in formal, technical, or procedural contexts.
問題を逐次解決していく。
We will solve the problems one by one.
Please report the situation on site as things progress.
データは逐次更新されます。
The data will be updated sequentially.
We plan to fix the problems one by one as we go.
This program processes the data one item at a time.
次々 is a casual, vivid word for rapid succession, whereas 逐次 is formal and systematic, often used in technical or procedural writing.
一斉に means 'all at once, simultaneously', the opposite of 逐次's one-by-one, sequential sense.
serialization
sequential; successive
sequential execution
consecutive interpretation; consecutive interpreting
serial publication
character printer; serial printer
Compound of 逐 (chase, pursue, one by one) and 次 (next, order). The meaning 'successively' arises naturally from the kanji components.