complimentary
adj 1: conveying or resembling a compliment; "a complimentary
remark" [ant: {uncomplimentary}]
2: costing nothing; "complimentary tickets" [syn: {costless}, {free},
{gratis(p)}, {gratuitous}]
3: obsequiously complimentary; "they listened with flattering
interest" [syn: {adulatory}]