Unlimited means with no cap on the amount allowed. Unlimited data, unlimited mileage, an unlimited budget.
In advertising it almost never means what it says — unlimited broadband is usually subject to a fair use policy, and regulators have made companies stop using the word where limits apply. Unlimited liability means a business owner can lose everything they own.
1adjectiveunlimitedWith no cap on the amount allowed.
“Our phone plan includes unlimited calls and texts.”
unlimited is a quality of extent.
Un-, not, plus limited, from Latin limes, a boundary. Limit and lintel are relatives.
Middle English
unlimitid
English, today
unlimited
From Middle English unlimitid, equivalent to un- + limited.
Etymology from Wiktionary, CC BY-SA