ステマ

• Reading: ステマ
• Romaji: sutema
• Kanji breakdown: Abbreviation of ステルスマーケティング (suterusu māketingu), from English 'stealth marketing'
• Pronunciation: /sɯ.te.ma/

Meaning

Stealth marketing — hidden or disguised advertisements pretending to be genuine recommendations or reviews.

As influencer culture exploded in Japan, so did suspicion around ステマ. The term describes when companies pay for positive coverage that's disguised as organic recommendations — a YouTuber praising a product without disclosing the sponsorship, a review site giving suspiciously high ratings, or an Instagram post that's secretly an ad. Japan introduced regulations requiring disclosure of sponsored content in 2023, but ステマ remains a major trust issue. Calling something ステマ is a serious accusation that can damage both the brand and the influencer.

Examples

1. あのインフルエンサーの投稿、完全にステマでしょ。 That influencer's post is totally stealth marketing.
2. ステマがバレて炎上してるの見た？ Did you see them getting flamed after their stealth marketing got exposed?
3. レビューサイト、ステマだらけで信用できない。 Review sites are full of stealth marketing — you can't trust them.

Usage Guide

Context: social media, internet forums, consumer discussion

Tone: suspicious, accusatory

Do Say

• これ、ステマじゃなくて本当におすすめだよ。 (This isn't stealth marketing — I genuinely recommend it.)
• ステマっぽい記事は信用しない方がいい。 (You shouldn't trust articles that look like stealth marketing.)

Don't Say

• 本当に好きで紹介している人に「ステマ」は侮辱 (Calling someone's genuine recommendation 'stealth marketing' is insulting)

Common Mistakes

• Accusing every positive review of being ステマ — sometimes people genuinely like things
• Not knowing that ステマ is now legally regulated in Japan since 2023, making it more than just a social media term

Origin & History

Abbreviation of ステルスマーケティング (stealth marketing), from English. Became a major buzzword in the early 2010s as influencer marketing grew and consumer skepticism increased. Japan regulated it in 2023.

Cultural Context

Era: 2010s influencer culture, 2023 legal regulation

Generation: All internet users

Social background: Universal

Regional notes: Used nationwide. Japan's Consumer Affairs Agency introduced ステマ regulations in October 2023.