is this the correct word for "paranormal?"

Alışılmamış means something that people are not used to do. Its main translation is 'unusual'.

It could be alright but "olağan dışı" (extraordinary) is better since this sounds more mysterious and magical etc. "Olağan dışı" or "olağan üstü" are common words when people start talking about UFO's etc.

Sıradışı (unique, different, unusual) is also possible.

After reconsidering I think the best word will be "gerçek üstü" (something that is beyond the reallity, surreal).

thank you again

Somebody when talking about the film X-files used another word as an alternative for paranormal: doğa üstü (beyond the nature).

http://forum.ceviz.net/showthread.php?t=1919&goto=nextnewest

Somebody else suggests "normal ötesi" (beyond normal). There are many options. I think sıradışı and alışılmamış are too weak. "Gerçek üstü" is an option but could be skipped because of the term surrealism being translated into Turkish as gerçeküstücülük.
"Normal ötesi" sounds artificial. Maybe "doğa üstü" is the best translation.

Its easy, paranormal is the Turkish language