Synonyms for possible include feasible, achievable, likely, probable, workable, attainable, viable, practical, and conceivable. The best choice depends on the context. For example, feasible means something can realistically be done, while conceivable means something can be imagined or considered possible.

What Does “Possible” Mean?

“Possible” means something that can happen, exist, or be done under the right conditions. It doesn’t guarantee an outcome, it just means the outcome isn’t ruled out.

In plain words: if there’s a real chance of something happening, it’s possible

What Are 5 Good Synonyms for “Possible”?

If you only remember five words from this whole list, make it these:

1. Feasible

2. Viable

3. Achievable

4. Doable

5. Conceivable

Formal Synonyms for Possible

Feasible

Meaning: capable of being done with the resources at hand.
Example: The manager said the deadline was feasible if the team worked together.

Viable

Meaning: able to work or survive in practice.
Example: Their business idea turned out to be a viable option after all.

Achievable

Meaning: able to be reached or accomplished.
Example: She set an achievable goal for her first month at the gym.

Attainable

Meaning: within someone’s reach or grasp.
Example: A promotion felt attainable once he finished the certification.

Practicable

Meaning: capable of being put into practice, right now.
Example: The engineers found a practicable fix without shutting down the plant.

Tenable

Meaning: defensible or able to be maintained.
Example: His argument was tenable, even under tough questioning.

Everyday Synonyms for Possible

Doable

Meaning: something a person can realistically do.
Example: Cleaning the garage in one weekend sounds doable.

Workable

Meaning: practical enough to actually function.
Example: They came up with a workable schedule for the whole family.

Manageable

Meaning: able to be handled without too much stress.
Example: The workload felt manageable once she made a list.

Reachable

Meaning: able to be reached with effort.
Example: The sales target is reachable if we push hard this quarter.

Practical

Meaning: sensible and grounded in real conditions.
Example: A practical solution beats a fancy one that never gets used.

Synonyms for Possible That Suggest Probability

Likely

Meaning: expected to happen based on current facts.
Example: Rain is likely later this afternoon.

Probable

Meaning: more likely than not to be true.
Example: A delay is probable given the current traffic.

Plausible

Meaning: believable, even if not confirmed.
Example: His excuse sounded plausible, but nobody checked it.

Presumable

Meaning: reasonably assumed, without direct proof.
Example: It’s presumable that the flight was delayed by the storm.

Foreseeable

Meaning: able to be predicted before it happens.
Example: No changes are expected in the foreseeable future.

Synonyms for Possible That Suggest Imagination or Theory

Conceivable

Meaning: able to be imagined or thought of.
Example: It’s conceivable that prices will drop next year.

Imaginable

Meaning: able to be pictured mentally.
Example: Every imaginable outcome was discussed before the launch.

Hypothetical

Meaning: based on a suggested idea, not proven fact.
Example: They walked through a hypothetical scenario during training.

Theoretical

Meaning: existing in theory rather than in practice.
Example: The plan looked good on paper, but it stayed theoretical.

Thinkable

Meaning: able to be considered seriously.
Example: A four-day workweek is finally thinkable for many companies.

Synonyms for Possible That Carry a Logical Tone

Reasonable

Meaning: fair and sensible given the situation.
Example: A reasonable request deserves a reasonable answer.

Sound

Meaning: well-founded and logically solid.
Example: Her sound reasoning convinced the whole committee.

Valid

Meaning: logically correct and acceptable.
Example: That’s a valid point worth discussing further.

Cogent

Meaning: clear, logical, and convincing.
Example: He gave a cogent explanation for the delay.

Logical

Meaning: following clear reasoning.
Example: Skipping the meeting seemed like the logical choice.

A Few More Worth Knowing

Some synonyms for possible don’t fit neatly into one category, but they still pull their weight.

• Prospective – likely to happen or become something soon
• Sustainable – able to continue over time without breaking down
• Negotiable – open to change through discussion
• Legitimate – acceptable and fair under the circumstances
• On the cards – expected to happen soon (common in British and Commonwealth English)
• Within reach – close enough to achieve
• Anticipated – expected based on planning or evidence
• Satisfactory – good enough to meet a standard
• Adequate – sufficient for the purpose
• Accessible – easy to reach, obtain, or use

Antonyms of Possible

The opposite of possible describes something that cannot happen, cannot be done, or is not realistic under the given conditions. Common antonyms include:

Antonym	Meaning	Example
Impossible	Cannot happen or be done	It is impossible to finish the work in one minute.
Unlikely	Not expected to happen	It is unlikely to rain today.
Impractical	Not sensible or realistic to do	The plan is too expensive and impractical.
Infeasible	Not possible to achieve or carry out	The project proved infeasible within the budget.
Unachievable	Cannot be reached or completed	The deadline seems unachievable.
Unattainable	Impossible to reach or obtain	That goal may be unattainable without more resources.
Unworkable	Cannot work successfully in practice	The proposed schedule is unworkable.
Impossible to achieve	Cannot realistically be accomplished	The target is impossible to achieve in such a short time.
Unreasonable	Not sensible or realistic	The request is unreasonable given the circumstances.
Impracticable	Difficult or impossible to put into action	The plan was considered impracticable.

Frequently Asked Questions

What is the closest synonym for possible?
Feasible and likely are the two closest matches, though they lean in different directions — feasible focuses on capability, while likely focuses on probability.

What is a formal word for possible?
Feasible, viable, and tenable all work well in formal or professional writing.

What is a simple synonym for possible?
Doable is one of the simplest and most common everyday alternatives.

Is “probable” the same as “possible”?
Not quite. Possible means something can happen, while probable means it’s likely to happen. Every probable event is possible, but not every possible event is probable.

Final Thoughts

Possible is a fine word. Nothing wrong with it. But English hands you dozens of ways to say the same thing with a different shade of meaning, tone, or confidence level. Whether you need something formal like feasible, something casual like doable, or something that leans on probability like likely, there’s a synonym here that fits.