平易|へいいheii[1]atamadaka (head-high)

1. na-adjective, nouneasy; simple; plain
   これは平易へいいな英語えいごでかかれた書物かきものです。↗

   This is a story written in easy English.

• SynonymやさしいNeutralCommon in speech for something simple and easy to grasp; 「平易」 is more written and mostly describes plain, accessible texts or explanations.
• Synonym簡単かんたんNeutralThe most versatile of these words: it covers simple and brief, stressing that something is not complicated.
• Synonym簡易かんいNeutralDescribes simplified facilities and procedures, as in 「簡易宿泊所」 or 「簡易裁判所」; the focus is on simplified setups.
• SynonymたやすいNeutralMeans something can be done effortlessly; unlike 「平易」, it does not describe plain, readable texts.
• SynonymシンプルNeutralLoanword for clean, unadorned simplicity; fits designs, explanations and structures, and lacks 「平易」's written flavour.
• Synonym容易よういNeutralA written-flavoured word for something easy, as in 「容易ではない」.
• Synonym平明へいめいWrittenWritten word for clear, easy-to-follow writing, mostly about texts; close to 「平易」 but with more emphasis on clarity.
• SynonymイージーCasualColloquial loanword for something relaxed and casual, with a hint of carelessness; unlike 「平易」, not about plain texts.
• Synonym安易あんいNeutralOften negative, suggesting a hasty, careless 'easy way out'; 「平易」 has no such disapproval.
• Synonym安直あんちょくNeutralSuggests taking the cheap, easy option, with a mildly negative tinge; not about plain writing.
• SynonymやすいNeutralUsually a suffix, as in 「読みやすい」, marking that an action is easy; unlike 「平易」, it does not describe plain texts.
• Synonym簡便かんべんNeutralStresses convenience and ease of use; 「平易」 is about the plainness of writing, not convenience.
• Synonym単純たんじゅんNeutralFocuses on uncomplicated structure and can also mean simple-minded; unlike 「平易」, not about plain texts.
• Related生易しいなまやさしいNeutralUsually takes a negative, as in 「生易しくない」, meaning something is no simple matter; unlike 「平易」, it does not describe plain texts.
• Related手軽てがるNeutralMeans handy, easy and economical, as in 「手軽な料理」; about convenience, not the plainness of a text.
• Related楽らくNeutralCovers comfort and ease, stressing that something is not strenuous; 「平易」 is about plain, readable writing instead.
• RelatedわかりやすいNeutralEveryday word for easy to understand; it stresses comprehensibility, while 「平易」 is written and describes plain texts.
• Related造作ないぞうさないWrittenWritten and rather old-fashioned, and little used; it means something takes no trouble, not that a text is plainly written.
• RelatedちょろいCasualSlang for a piece of cake, or for someone easily fooled; strictly colloquial, unlike written 「平易」.
• RelatedたわいもないNeutralDescribes something silly and childish, or done all too easily; the point is that it is hardly worth taking seriously.
• Related軽易けいいWrittenWritten and rarely used; it means light and undemanding rather than plainly written.
• RelatedわけないCasualColloquial for something that takes no effort at all; unlike 「平易」, not a word for plain texts.
• Antonym難解なんかいNeutralThe direct opposite: obscure and hard to understand, where 「平易」 texts are plain and accessible.
• Antonym複雑ふくざつNeutralThe antonym on the 'simple' side: tangled and complicated, against 「平易」's simplicity.

Use 「平易」 for plain, easy-to-follow writing or explanations; it is a written-style word, as in 「平易な文章」. In speech prefer 「易しい」, 「簡単」 or 「分かりやすい」, and use 「容易い」 for something done effortlessly; the main antonym is 「難解」. The rest differ in focus: convenience with 「簡易」, 「手軽」 and 「簡便」, structure with 「単純」 and 「シンプル」, a careless nuance with 「安易」, 「安直」 and 「イージー」.

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

1. 簡単かんたんであり、難むずかしくないこと。また、そのさま。