conditional
Americanadjective
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imposing, containing, subject to, or depending on a condition or conditions; not absolute; made or allowed on certain terms.
conditional acceptance.
- Synonyms:
- relative, contingent, dependent
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Grammar. (of a sentence, clause, mood, or word) involving or expressing a condition, as the first clause in the sentence If it rains, he won't go.
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Logic.
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(of a proposition) asserting that the existence or occurrence of one thing or event depends on the existence or occurrence of another thing or event; hypothetical.
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(of a syllogism) containing at least one conditional proposition as a premise.
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Mathematics. (of an inequality) true for only certain values of the variable, as x + 3 > 0 is only true for real numbers greater than −3.
noun
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conditionals
plural
adjective
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depending on other factors; not certain
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grammar (of a clause, conjunction, form of a verb, or whole sentence) expressing a condition on which something else is contingent: " If he comes " is a conditional clause in the sentence " If he comes I shall go "
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(of an equation or inequality) true for only certain values of the variable: x ² –1 = x + 1 is a conditional equation, only true for x = 2 or –1
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(of an infinite series) divergent when the absolute values of the terms are considered
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Also: hypothetical. logic (of a proposition) consisting of two component propositions associated by the words if…then so that the proposition is false only when the antecedent is true and the consequent false. Usually written: p → q or p ⊃ q, where p is the antecedent, q the consequent, and → or ⊃ symbolizes implies
noun
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grammar
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a conditional form of a verb
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a conditional clause or sentence
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logic a conditional proposition
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of conditional
1350–1400; Middle English condicionel < Anglo-French, Middle French < Late Latin condiciōnālis, equivalent to condiciōn- (stem of condiciō ) condition + -ālis -al 1
Explanation
Something conditional is dependent on other factors. You might receive a conditional offer of acceptance from a college, depending on your high school graduation and your maintaining passing grades. For a clue to the meaning of conditional, look at an opposing term: unconditional surrender, which means someone surrenders and doesn't ask for anything in return. In a conditional surrender, someone will give up only if certain things happen. A conditional agreement is dependent on other factors: a company could make a conditional hire, meaning they'll hire you only if you finish your degree and take a blood test. When you see the word conditional, think "It depends."
Vocabulary lists containing conditional
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To All the Boys I've Loved Before
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Korematsu v. United States (1944)
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
Harshey-Jones was given conditional bail following a hearing at Chester Crown Court, and will be sentenced on 19 November.
From BBC ● Sep. 30, 2026
Trusts are usually written in very conditional, flexible language to account for all future possible scenarios and last through several generations of trustees and beneficiaries.
From MarketWatch ● Sep. 28, 2026
In addition, it includes a conditional restriction that Meta also agreed to: expanding the nighttime shutdown period to 10:00 pm to 7:00 am, if other platforms also commit to do the same.
From Barron's ● Sep. 26, 2026
But biological data are conditional, inconsistent and of varying quality, and practical data sets cover only a fraction of small-molecule chemical compounds.
From The Wall Street Journal ● Sep. 24, 2026
Before I get to a serious application, I’d like to mention another con game which works because of confusion about conditional probability.
From "Innumeracy: Mathematical Illiteracy and Its Consequences" by John Allen Paulos
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"They also can repair damage to their DNA caused by radiation and other extreme conditionals or chemicals."
From Salon ● Sep. 1, 2024
In the courtroom his lawyer read out a carefully written, complicated text, full of caveats, conditionals and the passive voice.
From BBC ● Jun. 27, 2023
Assess the truth of conditionals and universal statements using counterexamples.
From Textbooks ● Jun. 15, 2022
“What Slavic 101 couldn’t name didn’t exist,” Batuman writes; Nina’s reality remains untroubled by conditionals and subjunctives.
From Slate ● Mar. 20, 2017
There is one more piece to the puzzle of how to write classy conditionals.
From "The Sense of Style" by Steven Pinker
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.