Hypertext Webster Gateway: "costless"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Costless \Cost"less\ (k?st"l?s; 115), a.
Costing nothing.
From WordNet (r) 1.7 (wn)
costless
adj : costing nothing; "complimentary tickets" [syn: {complimentary},
{free}, {gratis(p)}, {gratuitous}]
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