noun
deceptive advertising; misleading advertisement
Refers to advertising that exaggerates a product's quality, effectiveness, or value, often to the point of being deceptive. Commonly used in consumer protection contexts.
その会社は誇大広告で消費者庁から注意を受けた。
The company received a warning from the Consumer Affairs Agency for deceptive advertising.
I read reviews carefully so as not to be misled by exaggerated advertising.