How to say "deceptive" in Japanese

• 欺瞞的ぎまんてき
  na-adjectiveCovers 'deceptive' in the sense of deliberately misleading or fraudulent: conduct, claims, or appearances designed to trick. It is a less common word, closest to 'fraudulent' in force.
• 見かけ倒しみかけだおし
  no-adjectiveCovers 'deceptive' as in 'deceptive looks': something impressive-looking that is not as good as it seems. It labels a thing all show and no substance, without implying fraud; it is a less common word.
  それは見みかけ倒たおしだ。↗

  It is not as good as it looks.

Use 欺瞞的 for the sense of deliberate deception or fraud, and 「見かけ倒し」 when something simply looks better than it really is — all show, no substance.

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

• 欺瞞的ぎまんてきdeceptive
• 見かけ倒しみかけだおしshowy but worthless