1. Conveying or resembling a compliment
   "a complimentary remark" 
2. Costing nothing
   "complimentary tickets"
   - costless, free, gratis, gratuitous

Sounds like: complementary

See also: compliment, encomiastic, eulogistic, favorable [US], favourable [Brit, Cdn], laudatory, panegyric, panegyrical, praiseful, praising, unpaid

Antonym: uncomplimentary

Encyclopedia: Complimentary

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• telepathist
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• telephone
• telephone bell
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• telephone book
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• telephone cord
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• telephone kiosk