- 1
Except on a specified condition; if not.
- I’m leaving unless I get a pay rise.
- You can't go out unless it stops raining.
- 2
If not; used with counterfactual conditionals.
- Who would know of Alexander or Caesar, or would respect the Stoics or the Peripatetics, unless they had been distinguished by the memorials of writers?
- Unless He were omnipotent, we could not be sure of His ability to bless us.
- 3
Except if; used with hypothetical conditionals.
- Q. If Lieutenant P. had given the word "Fire," would you have fired, and at what?—A. I should not have known, unless he had told me what to fire at.
ant. if