楽々・楽楽|らくらくrakuraku[3]nakadaka (mid-high)

1. adverb (with と)comfortably; easily
   ぼくは手てが足あしの指ゆびに楽々らくらくとどくよ。↗

   I can easily touch my toes.

• Synonym軽々かるがるNeutralLightly and without strain, typically for lifting something heavy, as in 「軽々と持ち上げる」; 「楽々」 is not limited to physical tasks.
• Synonym難なくなんなくNeutralGetting something done without running into difficulty, as in 「難なく合格」; 「楽々」 also carries a sense of comfort and roominess.
• SynonymあっさりNeutralReadily and cleanly, but also light in flavor or plain and uncomplicated in character; 「楽々」 only means ease.
• SynonymやすやすNeutralEffortless, often with a nuance that it should not have been so easy, as in 「易々と侵入を許す」; 「楽々」 leans more toward relaxed ease.
• Synonym手も無くてもなくWrittenWritten/formal prose: with no effort at all, in one go; often of being easily beaten. Rarely used.
• Synonym苦もなくくもなくNeutralDoing something without effort or struggle; 「楽々」 can also mean roomy and comfortable, as in 「楽々座れる」.
• SynonymわけなくNeutralWith no difficulty at all, close to 「難なく」; 「楽々」 adds a feeling of being relaxed and at ease.
• Related快くこころよくNeutralGladly and willingly, as in 「快く引き受ける」; it is about one's mood, and does not express ease.
• Related安々やすやすWrittenWritten/formal prose: calmly and peacefully, or effortlessly; for the peaceful sense don't write 「易々」; in daily speech 「楽々」 is more common.
• Antonym苦労くろうNeutralToil and hardship, expending mental or physical effort; the opposite of the ease of 「楽々」.
• Antonym困難こんなんNeutralDifficult, hard to carry out or achieve; the opposite of the easiness of 「楽々」.

Use 「楽々」 for doing something easily and comfortably. 「軽々」 suits lifting something heavy without strain, 「難なく」 passing or clearing something without difficulty, and 「易々」 cases where the ease is surprising or shouldn't happen. 「あっさり」 also covers light flavors and blunt refusals, 「快く」 is about willingness, and 「苦労」 and 「困難」 are the opposites.

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

1. 気楽きらくなさま。のんびりしたさま。
2. 苦労くろうすることもなくたやすいさま。