Synonyms of costless

costless

adjective

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

Synonyms & Similar Words

• free
• optional
• gratuitous
• complimentary
• gratis
• on the house
• voluntary
• nominal
• discretionary
• donated
• unpaid
• given
• bestowed
• uncompensated
• honorary
• freewill
• pro bono

Antonyms & Near Antonyms

• expensive
• costly
• high
• paid
• dear