How to say "blasphemy" in Japanese

• 冒涜ぼうとく
  noun, suru verb, transitive verbThe broadest of these words: blasphemy against God or the gods, and by extension sacrilege or desecration of sacred things. In most contexts where English 'blasphemy' fits, this is the natural choice.
• 涜神とくしん
  nounNarrowly and specifically blasphemy: irreverent speech or conduct directed at God or the gods. Uncommon, and limited to that religious offense, so it suits contexts where the deity is the direct target.
• 汚涜おとく
  noun, suru verbAn uncommon near-synonym of 冒涜, covering blasphemy and desecration. Because the overlap is so close, this is seldom the word you want; 冒涜 will serve in practically any context where this might fit.
• 不敬ふけい
  noun, na-adjectiveBroader than the others: disrespect, irreverence, or impiety toward what deserves reverence, with blasphemy as one shade. Choose it when the emphasis falls on the lack of respect rather than the offense against a deity.
  彼かれの不敬ふけいな発言はつげんは不愉快ふゆかいだ。↗

  His irreligious statements are offensive.

Choose 冒涜 for blasphemy, sacrilege, or desecration in general; 涜神 for the narrow offense against a deity itself; 汚涜 is an uncommon near-synonym of 冒涜; 不敬 stresses disrespect or irreverence more broadly.

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

• 冒涜ぼうとくblasphemy
• 涜神とくしんblasphemy
• 汚涜おとくblasphemy
• 不敬ふけいdisrespect