unless

Etymology
onlesse, from on lesse, from "on a less condition".

Conjunction

 * 1) Except on a specified condition; if not.
 * 2) If not;
 * 3) * 1159, John of Salisbury, Policraticus, edited by Cary J. Nederman, Cambridge University Press, 1990, page 3 (Google Books view):
 * 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?
 * 1) * 1867, William Robinson Pirie, Natural Theology: An Inquiry Into the Fundamental Principles of Religious, Moral, and Political Science, page 75 (Google Books view):
 * Unless He were omnipotent, we could not be sure of His ability to bless us.
 * 1) Except if;
 * 2) * 1809, The Naval Chronicle for 1809: Containing a General and Biographical History of the Royal Navy of the United Kingdom with a Variety of Original Papers on Nautical Subjects. Vol. XXII. (from July to December), Cambridge University Press, 2010, page 482 (Google Books view):
 * 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.
 * 1) * 1981, Arthur C. Danto, The Transfiguration of the Commonplace: A Philosophy of Art, page 118 (Google Books view):
 * Suppose Breugel had done the whole painting with no legs. Then, titled as it is, it would be mystifying, unless someone were to say: the boy has fallen in the waters and they have closed over him, calm is restored, life goes on (as in The Israelites Crossing the Red Sea).
 * 1) Except if;
 * 2) * 1809, The Naval Chronicle for 1809: Containing a General and Biographical History of the Royal Navy of the United Kingdom with a Variety of Original Papers on Nautical Subjects. Vol. XXII. (from July to December), Cambridge University Press, 2010, page 482 (Google Books view):
 * 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.
 * 1) * 1981, Arthur C. Danto, The Transfiguration of the Commonplace: A Philosophy of Art, page 118 (Google Books view):
 * Suppose Breugel had done the whole painting with no legs. Then, titled as it is, it would be mystifying, unless someone were to say: the boy has fallen in the waters and they have closed over him, calm is restored, life goes on (as in The Israelites Crossing the Red Sea).
 * Suppose Breugel had done the whole painting with no legs. Then, titled as it is, it would be mystifying, unless someone were to say: the boy has fallen in the waters and they have closed over him, calm is restored, life goes on (as in The Israelites Crossing the Red Sea).

Translations

 * Afrikaans: tensy
 * Albanian: po të mos
 * Amharic: በስተቀር
 * Arabic:
 * Aramaic:
 * Classical Syriac: ܐܠܐ
 * Armenian: եթե չ-
 * Azerbaijani:
 * Bashkir:
 * Basque: salbu
 * Belarusian: калі́ не
 * Bengali: না হলে
 * Bulgarian: освен ако
 * Burmese: မဟုတ်လျှင်
 * Catalan:, , , ,
 * Cherokee:
 * Chinese:
 * Cantonese: 除非
 * Mandarin:
 * Czech: dokud ne
 * Danish: medmindre, undtagen
 * Dutch:
 * Esperanto: kondiĉe
 * Estonian: kui ei
 * Faroese: uttan
 * Finnish: ,
 * French:, sauf si
 * Georgian: თუ არ
 * German: wenn nicht, es sei denn
 * Greek: εκτός αν, παρά μόνο αν
 * Ancient: εἰ μή
 * Gujarati: જ્યાં સુધી
 * Hawaiian: ke ole
 * Hebrew:, אלא אם כן
 * Hindi: जब तक
 * Hungarian:, , csak ha
 * Icelandic:
 * Indonesian:
 * Irish: mura
 * Italian: ,
 * Japanese: もし...でなければ
 * Khmer: លុះត្រាតែ
 * Korean: ...이 아니면
 * Kurdish:
 * Central Kurdish: مەگەر
 * Latin:
 * Malay: melainkan
 * Malayalam:
 * Maltese: kemm-il darba
 * Maori: māna
 * Mirandese:
 * Mongolian: үгүй бол
 * Ngazidja Comorian: illa
 * Norwegian: hvis ikke
 * Bokmål: med mindre
 * Nynorsk:, minders,
 * Occitan:
 * Old English: būtan
 * Old Norse: nema
 * Pashto: پرته لدې چې
 * Persian: مگر اینکه
 * Polish:
 * Portuguese: ,
 * Romanian: cu excepția cazului în
 * Russian: е́сли не, ра́зве что
 * Rwanda-Rundi: keretse
 * Serbo-Croatian: osim ako, ukoliko ne, ako ne
 * Sinhalese: නම් මිස
 * Slovene: razen če
 * Spanish: a menos que, a no ser que,, como no
 * Swedish: såvida ej, såvida inte
 * Tamil:
 * Tatar: мәгәр
 * Telugu:
 * Thai: ,
 * Turkish: -mezse
 * Ukrainian: якщо́ не, хіба що
 * Vietnamese:, trừ khi
 * Volapük:
 * Welsh: oni
 * Yiddish: סײַדן