complimentary

1 expressing approval the novel received overwhelmingly complimentary reviews Synonyms admiring, applauding, appreciative, approbatory, approving, commendatory, favorable, friendly, good, positiveRelated Words accepting, warm; encomiastic, eulogistic, flattering, hagiographic (also hagiographical), laudative, laudatory, panegyrical, praiseful; respectful, supportive, sympathetic; adoring, adulatory, idolizing, worshipful, worshipping (also worshiping); advisory, recommendatoryNear Antonyms captious, carping, caviling (or cavilling), censuring, critical, faultfinding, hypercritical, overcritical; belittling, contemptuous, disdainful, disparaging, scornful, slightingAntonyms adverse, depreciative, depreciatory, derogatory, disapproving, inappreciative, negative, unappreciative, uncomplimentary, unfavorable, unflattering, unfriendly

2 not costing or charging anything the airline will continue to give out complimentary soft drinks on all domestic flights Synonyms free, costless, gratis, gratuitousRelated Words nominal; bestowed, donated, given; pro bono; discretionary, freewill, optional, voluntary; honorary, uncompensated, unpaidNear Antonyms paid; costly, dear, expensive, high