予定|よていyotei[0]heiban (flat)

1. noun, suru verb, transitive verbplans; arrangement; schedule; program; programme; expectation; estimate
   ご搭乗とうじょうは６時じ４０分ふんになる予定よていです。↗

   Boarding will be at six-forty.

• Synonym計画けいかくNeutralA plan worked out with methods and steps, as in 「旅行の計画」; 「予定」 centers on arrangements and timing.
• Synonym日程にっていNeutralThe day-by-day schedule or agenda, as in 「日程を調整する」; the focus is on how the dates are arranged.
• SynonymスケジュールNeutralA loanword for a schedule, time arrangement, or calendar, as in 「スケジュールが合わない」.
• Related企画きかくNeutralFor planning a concrete project or event, as in 「イベントを企画する」; the stress is on the creative conception, not on a fixed arrangement.
• Related構想こうそうWrittenA broad overall vision that has yet to take concrete shape, as in 「都市構想」; belongs to written/formal prose.
• Related立案りつあんWrittenDrawing up a plan or drafting a proposal; a formal word heard mostly in administrative and official settings, not for everyday arrangements.
• Related企てくわだてWrittenAn attempt or scheme, often with negative overtones, as in 「暗殺の企て」; not a neutral arrangement.
• Related企図きとWrittenA written word for scheming to do something, as in 「自殺を企図する」.
• Related日取りひどりNeutralThe date chosen and fixed for an occasion, as in 「結婚式の日取り」; the point is settling which day.
• Related画策かくさくWrittenManeuvering behind the scenes, usually with negative overtones, as in 「裏で画策する」; not ordinary scheduling.
• Related図るはかるWrittenA verb for working to bring something about, as in 「解決を図る」; it can also imply plotting; formal prose.
• Related企てるくわだてるWrittenA verb for plotting or hatching something, often negative, as in 「反乱を企てる」.
• Related設計せっけいNeutralDesign — a blueprint or a life plan such as 「人生設計」; about shaping structure, not fixing times.
• Related意図いとNeutralAn intention or aim — what someone means to do; about purpose, not scheduling.
• Related心づもりこころづもりCasualA plan or preparation you work out in your head beforehand, as in 「そのつもりで心づもりする」; colloquial.
• Antonym未定みていNeutralThe opposite of 「予定」: nothing has been settled yet, as in 「日時未定」.

「予定」 is the default for arrangements and schedules fixed in advance, and covers tentative ones too. Use 「計画」 for plans with concrete steps, 「スケジュール」 or 「日程」 for schedules, 「日取り」 for settling on a date, and 「企画」 for planning a project; 「未定」 is the opposite — nothing has been decided yet.

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

1. 行事ぎょうじや行動こうどうなどについてあらかじめ決きめておくこと。また計画けいかくしてある行事ぎょうじや行動こうどう、およびその内容ないようや日程にっていなど。