科学的|かがくてきkagakuteki

1. na-adjectivescientific
   彼かれの方法ほうほうは科学的かがくてきではない。↗

   His methods are not scientific.

• SynonymサイエンティフィックNeutralA loanword meaning the same as 「科学的」, but far less common in everyday use; 「科学的」 is the normal choice.
• Related合理的ごうりてきNeutralMeans according with reason, and also efficient, waste-free ways of doing things, as in 「合理的な判断」; it need not be based on scientific evidence.
• Related論理的ろんりてきNeutralDescribes reasoning that accords with logic, as in 「論理的に説明する」; the focus is on the rigor of the reasoning process, and empiricism is not necessarily involved.
• Related理性的りせいてきNeutralDescribes judging calmly without being swayed by emotion, as in 「理性的に話し合う」; it is about a person's attitude, not a method.
• Related体系的たいけいてきNeutralMeans organized into a coherent system, as in 「体系的に学ぶ」; the emphasis is on structure and order, not on whether something is empirical.
• RelatedロジカルNeutralA loanword with the same sense as 「論理的」 but a trendier feel, as in 「ロジカルシンキング」; it is about logic, not empirical evidence.
• Related筋の通ったすじのとおったCasualColloquial: describes talk or reasoning that holds together and makes sense, as in 「筋の通った話」; no link to scientific method.
• Related首尾一貫したしゅびいっかんしたWrittenWritten/formal prose: keeping the same attitude or policy from start to finish; it stresses consistency, not empirical grounding.
• Antonym非科学的ひかがくてきNeutralThe direct negative of 「科学的」: not based on scientific method or evidence; often used to criticize claims that lack support.
• Antonym迷信的NeutralAntonym: superstitious, judging by unfounded beliefs; the opposite of evidence-based 「科学的」, and more strongly pejorative.

Use 「科学的」 for things grounded in evidence and scientific method, as in 「科学的根拠」. For logic use 「論理的」 or the trendier 「ロジカル」; for reason and efficiency 「合理的」; for calm judgment 「理性的」; for systematic structure 「体系的」. 「筋の通った」 is colloquial for talk that makes sense; 「首尾一貫した」 is written prose for consistency. 「サイエンティフィック」 is a rarer loanword. 「非科学的」 directly negates 「科学的」, 「迷信的」 is harsher.

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

1. 現象げんしょうや行動こうどうが合理的ごうりてき、実証的じっしょうてきで自然科学しぜんかがくの方法ほうほうに沿そっているさま。