穏やか|おだやかodayaka[2]nakadaka (mid-high)

1. na-adjectivecalm; quiet; gentle; peaceful; mild
   海うみは穏おだやかに、そしてなめらかに見みえる。↗

   The sea looks calm and smooth.
2. na-adjectivemoderate; reasonable; amicable

• SynonymのどかNeutralDescribes the leisurely peace of the countryside or a spring day, with a poetic feel; 「穏やか」 also covers mild personalities and a placid way of handling things.
• Synonym静かしずかNeutralFocuses on the absence of sound and quietness, and can also mean little movement; 「穏やか」 stresses being calm and mild rather than intense, and can describe character.
• Synonym平静へいせいWrittenA written/formal word for a calm mind or situation, as in 「平静を装う」; 「穏やか」 is more versatile, covering weather and personality too.
• Synonym静穏せいおんWrittenWritten/formal; a state of hushed calm, mostly for surroundings or the situation. In everyday speech say 「穏やか」 or 「静か」.
• Synonym平穏へいおんNeutralMeans uneventful and free of trouble, as in 「平穏な日々」; 「穏やか」 can also describe a person's character or tone.
• Synonym安穏あんのんWrittenWritten/formal; living in peace and security, as in 「安穏に暮らす」, stressing a settled, worry-free life. 「穏やか」 is more everyday and versatile.
• Synonym物静かものしずかNeutralFor a quiet, reserved person or a hushed setting; 「穏やか」 stresses mildness rather than intensity, and doesn't necessarily mean quiet or taciturn.
• SynonymマイルドNeutralA loanword for mild flavors and gentle effects, as in 「マイルドな味」; 「穏やか」 is mostly for people and weather.
• Synonym安らかやすらかNeutralPeace free of danger or worry, often for sleep and in eulogies, as in 「安らかに眠る」; 「穏やか」 is more versatile.
• Synonym穏便おんびんNeutralSettling matters without letting them blow up, handling things peaceably, as in 「穏便に済ませる」; 「穏やか」 describes states and personality.
• Synonym落ち着いたおちついたNeutralComposed and settled, also used for subdued, understated colors; 「穏やか」 stresses being peaceful and mild rather than intense.
• Synonym温和おんわNeutralMild climates, or moderate personalities and views; close to 「穏やか」 but slightly more written/formal.
• SynonymのどやかWrittenWritten/formal and rare; gives a sense of leisurely tranquility, for scenery or for a person's air or voice. In daily speech use 「のどか」 or 「穏やか」.
• Related太平たいへいWrittenWritten/formal; a world at peace, free of war, or a carefree, easygoing person. 「穏やか」 is mostly for weather, moods and character.
• RelatedのんきNeutralCarefree and easygoing, but can carry a negative shade of failing to worry when one should, or being careless; 「穏やか」 is calm and composed, with no such nuance.
• Related優しいやさしいNeutralKind and tender toward people, with the focus on caring for others; 「穏やか」 stresses being calm and unexcitable, and can also describe the weather.
• Related平和へいわNeutralPeace in the sense of no war, and also a peaceful state of mind; 「穏やか」 is mostly used for weather, personality and tone.
• Relatedもの柔らかものやわらかWrittenWritten/formal; soft in speech and bearing, gentle toward people. In daily conversation say 「穏やか」 or 「柔らかい」.
• Related静謐せいひつWrittenAn elegant written/formal word for hushed serenity, also for a stable, settled world. In everyday speech use 「静か」 or 「穏やか」.
• Related寧静ねいせいWrittenWritten/formal and rare; inner peace and tranquility of mind. In daily speech say 「穏やか」 or 「落ち着いている」.
• Antonym荒いあらいNeutralAntonym: rough and wild — raging waves, ragged breathing, coarse manners — stands opposite to 「穏やか」 in degree of intensity.
• Antonym激しいはげしいNeutralAntonym: fierce and intense — storms, competition, emotions — stands opposite to 「穏やか」 in degree of intensity.
• Antonym騒がしいさわがしいNeutralAntonym: noisy and boisterous, also for turbulent, unsettled times; stands opposite to 「穏やか」 in liveliness and stability.

Use 「穏やか」 for calm weather and seas, and for gentle, even-tempered people and manners. Choose 「静か」 when the point is no noise, 「平穏」 for uneventful days, 「のどか」 for a leisurely countryside feel, and 「優しい」 for kindness toward people. Many others are written/formal (平静, 静穏, 安穏, 太平, 静謐, 寧静, もの柔らか, 長閑やか) or narrower (マイルド for taste, 穏便 for settling matters quietly, 安らか for restful peace). Antonyms: 「激しい」, 「荒い」, 「騒がしい」.

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

1. 静しずかで落ち着おちついたさま。のどかでやすらかなさま。
2. 性格せいかくやものごしが柔和にゅうわなさま。
3. 陽気ようきがあたたかいさま。
4. 穏当おんとうなさま。（打ち消うちけしの形かたちで）落ち着おちつかなかったり、過激かげきであったり、騒動そうどうを予感よかんさせたりするさま。