好都合|こうつごうkoutsugou[3]nakadaka (mid-high)

1. na-adjective, nounconvenient; favorable; favourable; expedient; expedience
   天気てんきが暖あたたかくて我々われわれのピクニックに好都合こうつごうだった。↗

   Warm weather favored our picnic.

• Synonym便宜べんぎWrittenWritten/formal prose for convenience or benefit; often in 「便宜を図る」. 「好都合」 describes a situation that suits you.
• Synonym便利べんりNeutralThe most common word: things or conditions are easy to use. 「好都合」 means a situation works in your favor or suits you.
• Synonym利便りべんWrittenWritten/formal prose, mostly in 「利便性」; used for convenient transport and facilities. 「好都合」 is about timing and circumstances.
• SynonymコンビニエンスCasualLoanword, rarely used alone; mostly in 「コンビニエンスストア」. Say 「便利」 in everyday speech.
• Synonym便利さべんりさNeutralA noun for how convenient something is. 「好都合」 is about timing and circumstances.
• Synonym有利ゆうりNeutralBeing in an advantageous, stronger position, as in 「有利な条件」. 「好都合」 stresses what is convenient for you.
• Related重宝ちょうほうNeutralAbout things being handy and much used, as in 「重宝する」; stresses an item's usefulness. 「好都合」 is about timing and circumstances.
• Related簡便かんべんNeutralSimple and convenient, saving effort, as in 「簡便な方法」. 「好都合」 does not stress simplicity.
• Related有益ゆうえきNeutralBeneficial and helpful in a general sense. 「好都合」 means convenient and favorable for you specifically.
• RelatedよろしいFormalFormal, polite way of saying 「よい」: fine, acceptable. 「好都合」 specifically means a situation suits you.
• Related有用ゆうようNeutralSimply means useful. 「好都合」 means a situation is convenient and favorable for you.
• Related実用的じつようてきNeutralPractical, focused on real-world usefulness. 「好都合」 describes a situation that suits you.
• Related役立つやくだつNeutralA verb: to be of use, to help. 「好都合」 is an adjectival noun describing suitable circumstances.
• Related調法ちょうほうWrittenWritten/formal prose, rarer than 「重宝」 and near-synonymous with it: things being handy and convenient.
• Related軽便けいべんWrittenWritten/formal prose, now little used: light and handy; also in light-railway terms. 「好都合」 is about a situation suiting you.
• Related割のいいわりのいいCasualColloquial: profitable, paying well, as in 「割のいいバイト」. 「好都合」 broadly means conditions suit you.
• Related便益べんえきWrittenWritten/formal prose for convenience and benefit, common in economic analysis like 「費用便益」. 「好都合」 is more everyday.
• Antonym不都合ふつごうNeutralAntonym: inconvenient or unsuitable circumstances, also improper conduct; the direct opposite of 「好都合」.
• Antonym不便ふべんNeutralAntonym: lack of convenience, typically of transport and facilities; opposite of the convenience 「好都合」 expresses.

Use 「便利」 when things or conditions are easy to use; use 「好都合」 when a time or situation suits you, as in 「水曜日なら好都合です」; use 「有利」 for being in a stronger position. In written prose, 「利便」 and 「便宜」 are the usual choices.

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

1. 都合つごうが良よいこと。