How to say "chronological" in Japanese

• 経時的けいじてき
  na-adjectiveAn adjective covering the 'over time' sense of 'chronological': how something changes as time passes, not the ordering of events in a sequence. Think of a change tracked across successive time points.
• 発生順はっせいじゅん
  no-adjectiveCovers the ordering sense of 'chronological': the order in which things occurred or arose. It fits lists or records arranged by when each item arose.
• 経時けいじ
  no-adjectiveThe noun behind the adjective 経時的, sharing its over-time, successive sense and also covering 'metachronic' and 'age-related'. By itself it is seldom how you would say 'chronological'.

Use 経時的 for the 'over time' sense of change, 発生順 for the ordering sense, things sequenced by when they occurred, and 経時 mainly as the noun behind 経時的, also covering 'metachronic' and 'age-related'.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 経時的けいじてきchronological
• 発生順はっせいじゅんchronological
• 経時けいじchronological