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Nouns and ideas

condition

noun, verb

  1. 01catch
  2. 02rule
  3. 03requirement
  4. 04stipulation
  5. 05proviso

casualformal

Condition Synonym Guide for Contracts, Health and Everyday Use

Nouns and ideasNounContract wordUpdated 26 Oct 2026

No single condition synonym works everywhere, because condition can mean the state or shape of a thing, a requirement or term in a deal, an illness, or the circumstances around you.

Writers often grab the first word they see and end up with something odd, like "the car is in good requirement." Start by naming the sense, then pick from the matching list. The plural has its own conditions synonym set, and the verb (to condition) is covered near the end.

Swatch at a glance

  • Best swaps

    state, shape, requirement, term, illness
  • Part of speech

    Noun, also a verb
  • Most formal

    stipulation, proviso, prerequisite
  • Most casual

    shape, catch, strings attached
  • Watch out

    Disease is stronger and more medical than condition. Use it only when a doctor would.
  • Antonyms

    exemption, waiver (for a requirement)
  • Word forms covered

    conditions, conditioned, conditional

Four senses, four word sets

You meanSwap inExample
How something looks or worksstate, shape, repairThe bike is in great shape.
A term to agree torequirement, term, stipulationOne term of the lease bans pets.
A medical issueillness, disorder, ailmentShe lives with a heart disorder.
The setting around youcircumstances, environmentWorkers faced harsh circumstances.

A fifth, smaller sense is physical fitness: he is out of condition becomes he is out of shape.

Condition synonym strength for terms and rules

When condition means something you must agree to, the chip strip shows how formal each option sounds. Catch is casual and suspicious: what is the catch? Rule is plain and broad. Requirement is the safe, neutral pick for forms and job ads. Stipulation belongs in contracts and legal letters. Proviso tops the formal end and typically adds an exception or limit to a deal.

Prerequisite and precondition mean something that must happen first: a degree is a prerequisite for the role.

Conditions synonym options for the plural

  • Weather conditions becomes the weather or the forecast.
  • Working conditions becomes the work environment or workplace standards.
  • Living conditions becomes housing or quality of life.
  • Terms and conditions stays as is in contracts; in plain speech say the fine print.
  • Under these conditions becomes in this situation or given the circumstances. See situation synonyms.

Talking about health with care

Condition is a gentle, neutral word for a health problem, which is why doctors and patients both use it. Illness and disease sound heavier. Disorder suits mental health and body systems. Ailment and complaint are mild, with a slightly dated feel. In a job or school setting, health issue lets a person share without giving details.

Note sent to a team lead: "I have a medical condition that needs a monthly appointment." Swapping in "disease" would share more than needed. Here condition, or health issue, is the kinder choice.

Swaps in sentences

  1. The house is in poor condition becomes the house is in poor repair.
  2. Payment is a condition of entry becomes payment is a requirement for entry.
  3. He agreed on one condition becomes he agreed with one proviso.
  4. You can go on condition that you call becomes you can go as long as you call.
  5. The patient's condition improved becomes the patient's health improved.
  6. Road conditions are bad becomes the roads are in a bad state.

A text to a buyer: "The phone is in mint condition." Mint is already the strong word, so another swap such as "like new" works just as well.

The verb and conditional

To condition means to train or shape a habit: children are conditioned to expect praise becomes children are trained to expect praise or children learn to expect praise. For hair, use soften or moisturize. The adjective conditional becomes dependent, subject to or provisional: a conditional offer becomes a provisional offer.

Antonyms and nearby words

Condition has no single opposite. For a requirement, the reverse is an exemption or waiver; for a conditional offer, it is an unconditional one. For poor physical state, the reverse is good health or fitness. Explore close nouns like quality, or browse the wider noun synonyms hub.

Frequently asked questions

Which word can replace condition in a contract?

Term, stipulation and provision are standard in legal writing. Requirement sounds plainer and suits forms and policies.

Is state a good synonym for condition?

Yes, when you mean how something is right now: the state of the roof. State does not work for rules or health problems.

How can I mention a medical condition politely?

Health issue and health condition are both gentle and private. Illness or disorder gives more detail, so use them only if you want to share it.

What does on condition that mean?

It means only if. Provided that, as long as and so long as are smooth replacements.

How do I describe good condition in a sale listing?

Try like new, well kept, in great shape or mint. Each sounds natural to buyers and fits a short listing.

Does condition have an opposite?

It depends on the sense. Exemption or waiver is the reverse of a requirement, and good health is the reverse of a medical problem.