幼稚|ようちyouchi[0]heiban (flat)

1. nouninfancy
2. na-adjective, nounchildish; infantile; immature; primitive
   幼稚ようちな説得せっとくとは、人ひとをしつこく唆そそのかすことだ。↗

   Crude persuasion is to persistently egg someone on.

• Synonym幼いおさないNeutralLeans toward being young in age, as in 「幼い子供」; 「幼稚」 is about immature thinking or behavior and carries a negative nuance.
• Synonym未熟みじゅくNeutralCovers unskilled technique or lack of experience, as in 「未熟者」; leans toward ability, while 「幼稚」 leans toward thinking.
• Synonym子供じみたこどもじみたNeutralDescribes acting like a child, as in 「子供じみた真似」; derogatory and close in feel to 「幼稚」.
• Synonym子供っぽいこどもっぽいNeutralMeans childlike, as in 「子供っぽい服」; milder than 「幼稚」 and not necessarily negative.
• Synonym未成熟みせいじゅくWrittenA written/formal prose word for not yet mature; leans toward physical development or technique being immature.
• Related稚拙ちせつWrittenA written/formal prose word for clumsy technique, as in 「稚拙な文章」; leans toward the execution of a work.
• Related年少ねんしょうWrittenA written/formal prose word for being young, as in 「年少者」; also the lowest grade at kindergarten.
• Related稚いいとけないWrittenA written/formal prose word for young and innocent, as in 「いとけない子」; carries an affectionate tone.
• RelatedたわいないNeutralRefers to trivial or simply amusing things, as in 「たわいない話」; leans toward content being inconsequential.
• Related大人げないおとなげないNeutralSaid of childish behavior, as in 「大人げない態度」; mostly used for adults or people expected to be mature.
• RelatedたわいもないNeutralMeans silly, trivial, or easy, as in 「たわいもないこと」; same as 「たわいない」.
• Related子どもらしいこどもらしいNeutralMeans having the qualities of a child, with a positive nuance, as in 「子どもらしい笑顔」; not derogatory.
• Related生煮えなまにえNeutralLiterally half-cooked; also used of vague attitudes, and figuratively of immature thinking.
• Related青臭いあおくさいNeutralMeans green and unpolished, as in 「青臭い議論」; derogatory, with a bookish, naive flavor.
• Related乳臭いちちくさいNeutralSays someone is wet behind the ears, as in 「乳臭い若造」; contemptuous.
• Related生熟れなまなれWrittenA written word for being inexperienced or unskilled at a craft; rarely used in modern Japanese.
• RelatedいたいけないWrittenA written/formal prose word for young, frail, and endearing; sympathetic, not derogatory.
• Antonym成熟せいじゅくNeutralMeans mature; the direct opposite of the immaturity of 「幼稚」.
• Antonym円熟えんじゅくWrittenA written/formal prose word for ripened character or skill; opposite of 「幼稚」.
• Antonym老練ろうれんWrittenA written/formal prose word for seasoned expertise; opposite of childish immaturity.

Use 「幼稚」 for thinking or behavior that is like a child's and immature, with a negative nuance, as in 「幼稚な考え」. For simply being young in age, say 「幼い」; for childlike in a milder, not necessarily negative way, 「子供っぽい」; for unskilled technique or inexperience, 「未熟」. The opposite of 「幼稚」 is 「成熟」.

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

1. 幼おさないこと。
2. 考え方かんがえかたや遣り方やりかたが未熟みじゅくなこと。