Freak out and Unpleasant experience

Freak out noun - A wild delusion (especially one induced by a hallucinogenic drug).

Unpleasant experience and freak out are semantically related. In some cases you can use "Unpleasant experience" instead a noun "Freak out".

Freak out and unpleasant experience are semantically related. Sometimes you can replace term "Freak out" with "Unpleasant experience", this terms are similar.