実質的|じっしつてきjisshitsuteki

1. na-adjectivesubstantial; real (as opposed to nominal)
   これは実質的じっしつてきにはそれよりも高たかくはない。↗

   This is in effect less expensive than that.

• Synonym事実上じじつじょうWrittenWritten/formal prose. Means in fact or effectively, as in 「事実上の倒産」; it describes the factual state, while 「実質的に」 stresses actual content, so they only partly swap.
• Synonym本質的ほんしつてきWrittenWritten/formal prose. Means essential, as in 「本質的な問題」; it points to a thing's intrinsic nature, while 「実質的」 points to its actual content.
• Related基本的きほんてきNeutralMeans basic or fundamental, as in 「基本的なルール」. It points to the basic level of something, while 「実質的」 contrasts actual content with what is nominal.
• Related根本的こんぽんてきWrittenWritten/formal prose. Means fundamental, as in 「根本的な解決」; it stresses getting at the root of things, while 「実質的」 contrasts substance with nominal form.
• Antonym形式的けいしきてきNeutralMeans formal or procedural, as in 「形式的な手続き」; the direct opposite of 「実質的」, which is about content and substance rather than form.
• Antonym表面的ひょうめんてきNeutralMeans superficial or on the surface only; the opposite of 「実質的」, which looks past appearances into the substance.

Use 「実質的」 for what is substantial or real as opposed to nominal, as in 「実質的な決定権」 and 「実質的に無料」. For 'in fact' say 「事実上」, for 'essential' 「本質的」; the opposites are 「形式的」 and 「表面的」.

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

1. 実質じっしつに関かんしての様子ようす。
2. 外見がいけんではなく、内容ないよう・実質じっしつを問題もんだいにするさま。