Synonyms for Sophisticate:

n.

expert (noun)
connoisseur, authority, technician, consultant, journeyman, crackerjack, maven, artist, pro, wizard, buff, professional, specialist, whiz, adept, expert, genius, master.
sophisticate (noun)
doctor, man of the world, doctor up, twist around, twist, pervert, convolute.

v.

adulterate (verb)
doctor, load, doctor up.

Other synonyms:

adulterate. Other relevant words:
doctor, twist around, convolute, pervert, man of the world, adulterate, twist, doctor up, load.