IELTS Speaking · Vocabulary
viable
adjectiveˈvaɪəblBand 8
Last updated 2 September 2026
In short
“viable” is a Band 8 adjective that means capable of working successfully; feasible. Below you'll find its pronunciation, natural example sentences, synonyms and antonyms, and the collocations that help you use it accurately in the IELTS Speaking test.
Meaning
Capable of working successfully; feasible.
Example sentences
- “The business is no longer commercially viable.”
- “Solar power is a viable alternative to coal.”
Synonyms & antonyms
Synonyms
feasibleworkablepracticable
Antonyms
unviableimpractical
Collocations & common phrases
Collocations
commercially viableviable optioneconomically viable
Common phrases
a viable alternative
Related words
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Frequently asked questions
What does “viable” mean?
Capable of working successfully; feasible.
How do you use “viable” in a sentence?
For example: “The business is no longer commercially viable.”
What are some synonyms for “viable”?
Synonyms include feasible, workable, practicable.
Is “viable” good vocabulary for IELTS Speaking?
Yes. It is Band 8 vocabulary, and collocations such as commercially viable, viable option, economically viable help you use it naturally. Reaching for precise, less common words like this is exactly what lifts your Lexical Resource score.