How to say "experimental" in Japanese

Choosing the right word
  • 試験的しけんてきCommon
    na-adjectiveCovers experimental in the sense of trial, provisional, or pilot: something done as a test to see how it works. Typical in scientific, technical, or policy contexts describing tentative trials.
  • 経験的けいけんてきCommon
    na-adjectiveCovers experimental in the scientific sense of empirical, based on observation or experience rather than theory. Used for experimental evidence, methods, or data in academic and scientific writing.
  • prenominal modifierCovers experimental only in the arts sense of unconventional or underground, as in avant-garde film or theater. It is an abbreviation for "underground" and is not the word for experimental science.

Use 試験的 for trial/provisional experiments, 経験的 for empirical or experience-based work, and 「アングラ」 only for experimental underground art, never science.

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

Japanese equivalents
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