" costless "

1: not costing or charging anything;

  * e.g., " ... maintaining a checking account with the bank is not the costless service that its advertising would have you believe "

•  Synonyms : 

•  complimentary,

•  free,

•  gratis,

•  gratuitous

•  Antonyms : 

• (N/A)

1: a payment made in the course of achieving a result;

  * e.g., " ... the newlyweds spared no cost in building the kitchen of their dreams "

•  Synonyms : 

•  charge,

•  disbursement,

•  expenditure,

•  expense,

•  outgo,

•  outlay

•  Antonyms : 

• (N/A)

2: the amount of money that is demanded as payment for something;

  * e.g., " ... we can't afford the cost of a house just yet, so we're renting an apartment "

•  Synonyms : 

•  ante,

•  charge,

•  damage,

•  fee,

•  figure,

•  freight,

•  price,

•  price tag

•  Antonyms : 

• (N/A)

3: the loss or penalty involved in achieving a goal;

  * e.g., " ... they won the war, but at a terrible cost in lives "

•  Synonyms : 

•  price

•  Antonyms : 

• (N/A)