1) Busy 2) Engaged 3) Inuse 4) Not for sale 5) Not home 6) Out 7) Taken 8) Unobtainable 9) Unprocurable 1) Exclusive 2) Inaccessible 3) Not for sale 4) Not ready for use 5) Off limits 6) Out of commission 7) Out of stock 8) Unattainable 9) Unobtainable 10) Unprocurable 11) Untouchable 
[adj] - not available or accessible or at hand
adjective not available or accessible or at hand; `fresh milk was unavailable during the emergency`; `his secretary said he was unavailable for comment`