as in free
not costing or charging anything
maintaining a checking account with the bank is not the costless service that its advertising would have you believe
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Recent Examples of Synonyms for costless
free
Adjective
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See list of free community events How to watch the World Cup in Miami away from the stadium.
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For those unable to attend games at Kansas City (Arrowhead) Stadium, the free-to-enter festival offers local and traveling spectators a place to gather during the World Cup.
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“Costless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/costless. Accessed 30 Jun. 2026.
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