有利・優利|ゆうりyuuri[1]atamadaka (head-high)

1. na-adjective, nounadvantageous; favourable; better; stronger
   その証拠しょうこは彼かれに有利ゆうりであった。↗

   The evidence was in his favor.
2. na-adjective, nounprofitable; lucrative; gainful; paying

• Synonym好都合こうつごうNeutralRefers to timing or conditions being just right, as in 「好都合な時間」; 有利 is about conditions working in favour of the outcome.
• Synonym有益ゆうえきWrittenDescribes something beneficial or helpful, as in 「有益な情報」; 有利 is about conditions favouring the result or giving you the upper hand.
• Synonym割のいいわりのいいCasualColloquial for getting a lot back for little outlay, as in 「割のいいバイト」; 有利 covers advantage more broadly.
• Related便利べんりNeutralSays something is convenient and easy to use, as in 「便利な道具」; 有利 is about conditions being good for the result.
• Related重宝ちょうほうNeutralSays something is handy and often comes in useful, as in 「重宝している」; it can also mean a treasured item, with a homely, everyday feel.
• Related便宜べんぎWrittenWritten language for convenience or accommodation, as in 「便宜を図る」; it is close to 有利 only in the sense of giving someone a benefit.
• Related好ましいこのましいNeutralMeans desirable or satisfactory, as in 「好ましい結果」; it evaluates whether something is welcome, not who holds the advantage.
• Related得とくCasualColloquial for a good deal or a bargain, as in 「買った方が得だ」; it weighs gain against loss.
• Antonym不利ふりNeutralThe direct opposite of 有利: conditions that put you at a disadvantage, as in 「不利な立場」.
• Antonym劣勢れっせいWrittenWritten word for being at a disadvantage in strength, as in 「劣勢を挽回する」; used mostly of matches, games and battle situations.

Use 「有利」 for conditions that help you reach a goal or gain an edge, and 「不利」 for the opposite. For convenience say 「便利」, for perfect timing 「好都合」, for something beneficial 「有益」, and for a good deal 「得」 or 「割のいい」.

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

1. 良よい条件じょうけんを持もっている様子ようす。