noun
A peremptory communication
order, call, charge, request; see command 1.
Willingness to purchase
trade, request, sale, bid, need, requirement, interest, vogue, call for, rush, pursuit, search, inquiry, desire to buy, market; see also desire 1.
Antonyms indifference*, lack of interest, sales resistance.
in demand
on demand
ready, prepared, usable, when requested, when required, when due, payable, collect, C.O.D., on call; see also available, due.