ピュアpyua

1. na-adjective, nounpure

• Synonym純粋じゅんすいNeutralFree of impurities or selfish motives; common in both speech and writing, used of motives and scholarship. 「ピュア」 is a loanword mostly for pure hearts or clean things.
• Synonym純正じゅんせいNeutralGenuine or authentic, as in 「純正部品」 (first-party parts), or purely theoretical study. It stresses authenticity and is not used of a person's heart.
• SynonymプレーンNeutralA loanword for plain, unflavored or unadorned things, as in 「プレーンヨーグルト」. It stresses that nothing has been added, and is not used of a person's heart.
• Synonym純じゅんNeutralPure or innocent, mostly in compounds like 「純金」 and 「純愛」; on its own it leans written. 「ピュア」 is the more colloquial choice.
• Synonym無垢むくNeutralSpotless purity of body and mind, as in 「純真無垢」; also unmixed materials and the plain same-color kimono it names. Solemn in tone.
• Synonym清浄せいじょうWrittenWritten/formal: clean and undefiled, leaning religious or hygienic, as in 「清浄な空気」. 「ピュア」 is more colloquial and mostly describes people.
• Synonym清らかきよらかNeutralA native word for clear, pure water or hearts, with a graceful, poetic color. 「ピュア」 is a loanword and more casual.
• Synonym純真じゅんしんNeutralInnocent and unspoiled, often of children's or young people's hearts. When describing a person's heart it can swap with 「ピュア」.
• Synonym清純せいじゅんNeutralPure and innocent with an aesthetic tinge, often of a girl's image, as in 「清純派」. 「ピュア」 covers a wider range.
• SynonymクリーンNeutralA loanword for clean and unstained, common for energy and politics, as in 「クリーンな政治」. It stresses having no stain.
• Synonym純情じゅんじょうNeutralA pure heart, stressing innocence in love, as in 「純情な青年」. 「ピュア」 is not limited to romance.
• Synonym純潔じゅんけつWrittenWritten/formal prose for purity or chastity, stressing moral or sexual innocence in a solemn tone. 「ピュア」 is lighter and mostly describes the heart.
• RelatedプレーンNeutralA loanword for plain, unflavored or unadorned things, as in 「プレーンヨーグルト」. It stresses that nothing has been added, and is not used of a person's heart.
• Related清澄せいちょうWrittenWritten/formal: clear and limpid, mostly of air and water but also of a mind, as in 「清澄な心」. 「ピュア」 is the more colloquial option.
• RelatedクリアNeutralA loanword for clear, transparent, or lucid things, and also for clearing a bar or passing a stage. It stresses transparency; 「ピュア」 stresses freedom from admixture.
• Antonym不純ふじゅんNeutralThe antonym: impure or adulterated, or impure motives, as in 「不純な動機」. It opposes 「ピュア」 both for admixture and for the heart.
• Antonym濁ったNeutralThe antonym for turbid water, air, or sound. It opposes 「ピュア」 in the sense of pure and transparent.

Use 「ピュア」 for a simple, pure heart or clean, unadulterated things, as in 「ピュアな心」. 「純粋」 works in both everyday and written contexts; say 「純正」 for genuine first-party goods and 「清純」 for a girl's innocent image. The opposite is 「不純」.

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

1. 雑まじり気きがないさま。
2. 純粋じゅんすいなさま。