COSTLESS Synonyms: 22 Similar and Opposite Words

costless

adjective

Definition of costless

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 costless Except that by its very description, the Act is forcing something quite a bit worse than costless accession of what’s valuable. — John Tamny, Forbes.com, 20 July 2026

Recent Examples of Synonyms for costless

free

Adjective

The Egypt international was again set free in the Forest half in the second period, and had the opportunity to feed Andy Robertson on the overlap, who was screaming for his team-mates’ attention.

— Elias Burke, New York Times, 6 Sep. 2026
The fragrance-, oil-, and silicone-free formula is geared towards oily or combination skin dealing with shine, congestion, and post-breakout discoloration.

— Christa Joanna Lee, Allure, 6 Sep. 2026

Definition of free

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costive

costless

costly

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“Costless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/costless. Accessed 18 Sep. 2026.

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Synonyms of costless

adjective

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