My prefix is a sneaky ad.

My suffix isn't yet closed.

My infix does sound rad.

My whole is evil and cold.

  • $\begingroup$ Can you add a hint? I have thought of several options for "sneaky ad" but it's difficult to narrow with the current clues. I could be on entirely the wrong track :) $\endgroup$
    – mjjf
    Commented Nov 28, 2020 at 13:09

1 Answer 1


Is it


My prefix is a sneaky ad

In marketing, a product demonstration (or "demo" for short) is a promotion where a product is demonstrated to potential customers.
A game demo version could also be considered an ad.

My suffix isn't yet closed

It's on, meaning not off or closed

My infix does sound rad

Not sure about that, maybe emo just sounds cool and OP likes the 2000s? :)

My whole is evil and cold

A demon is arguably evil, and 'cold' in the sense of lack of emotion, friendliness, or compassion

  • $\begingroup$ Do you mean emo as in emo? $\endgroup$ Commented Sep 9, 2020 at 21:57

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