How to say "blindly" in Japanese

• やたらJLPT N2approx.Common
  adverb (with と)Covers 'blindly' in the sense of acting recklessly or indiscriminately, without thought or restraint; typical when criticizing someone for doing something to excess. The common choice, usually written in kana.
  上役うわやくにやたらにぺこぺこするな。↗

  Don't be subservient to your boss.
• 盲目的にもうもくてきに
  adverbCovers 'blindly' in the sense of trusting someone completely, without question or doubt — blind faith or devotion. Less common, and the only one of the three that fits this trusting rather than reckless sense.
• やたらめったら
  adverb (with と)An emphatic counterpart of やたら with the same senses — blindly, recklessly, indiscriminately, at random — and likewise usually written in kana. Less common; use it for extra emphasis on the lack of thought or restraint.

For 'blindly' meaning recklessly or indiscriminately, use 「やたら」 (or the more emphatic 「やたらめったら」); for blindly trusting or following someone, use 「盲目的に」.

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

• やたらindiscriminately
• 盲目的にもうもくてきにblindly (trusting someone, etc.)
• やたらめったらindiscriminately