Poor sci-fi, in translation, unlikely to make you excited (9)
I believe the answer is:
soporific
'unlikely to make you excited' is the definition.
'poor sci-fi in translation' is the wordplay.
'in translation' indicates anagramming the letters (I've seen this in other clues).
'poor'+'sci'+'fi'='poorscifi'
'poorscifi' is an anagram of 'SOPORIFIC'.
(Other definitions for soporific that I've seen before include "Causing sleepiness" , "Inducing mental lethargy" , "making one nod" , "Sedative" , "Inducing drowsiness or sleep" .)