costless C2+ Topic:People & Society US /ˈkɔstləs/ UK /ˈkɒstləs/ See IPA manual Meanings 1 adj costing nothing; free of charge or expense A kind word is a costless gift that pays dividends for years. Thesaurus Synonyms 1 adj · costing nothing; free of... freegratiscomplimentarygratuitous ↔ Opposites costlyexpensivedearpricey Word family Derived forms costlesslycostlessness Related forms costcostly Etymology AI details From 'cost' plus the privative suffix '-less'. 'Cost' is from Old French 'coster', from Latin 'constare' ('to stand firm, cost'). constare Latin View etymology graph -> Topics People & Society Word Formation & Derivatives External links Cambridge Dictionary Wiktionary Google Images # costless **Type:** Word **Level:** C2+ **Part of speech:** adj **IPA (US):** /ˈkɔstləs/ **IPA (UK):** /ˈkɒstləs/ ## Meanings 1. costing nothing; free of charge or expense ## Examples - A kind word is a costless gift that pays dividends for years. ## Synonyms - free - gratis - complimentary - gratuitous ## Antonyms - costly - expensive - dear - pricey ## Derived Forms - costlessly - costlessness ## Related Forms - cost - costly ## Roots and Affixes - Root: constare ## Etymology From 'cost' plus the privative suffix '-less'. 'Cost' is from Old French 'coster', from Latin 'constare' ('to stand firm, cost'). ## AI Etymology Costless is from 'cost' plus the privative suffix '-less'. 'Cost' is from Old French 'coster', from Latin 'constare' ('to stand firm, cost'). The immediate etymological form is Latin constare. In present use as an adjective, it means "costing nothing; free of charge or expense", keeping the historical formation close to the word's ordinary semantic work. Related words include cost and costly; derived forms include costlessly and costlessness. Its contrast set includes costly, expensive, dear, and pricey, which clarifies the semantic boundary of the modern word. ## Topics - People & Society - Word Formation & Derivatives markdown