Answer:
Not sure what context the word will be used in, however I found these off of thesauras.com ( just incase you need to source anything). Antonyms include: adjoin, affix, associate, attach, bind, compound, connect, consolidate, couple, join, link, marry, meld, unify, unite, append, annex, fasten, fix, hang, subjoin, supplement, tack on, tag on, affiliate, blend, combine, concord, correlate, couple, group, identify, league, lump together, mix, pair, relate, think of together, unite, yoke. Hope this helps! Best of luck! :)