English Reference
adjective

viable

adj.
US /ˈvaɪəbəɫ/ UK /vˈaɪəbəl/ vi·able

  1. 01 B2 Upper Intermediate

    describes a plan, idea, or method that can actually work in real life.

    capable of working successfully; feasible or practicable in a given context.

    Simple

    The company decided the project was not financially viable because it would cost too much.

    In context

    After reviewing the market data, the board concluded that the startup's business model was no longer viable in the current economic climate.

    impossibleunworkable
  2. 02 C1 Advanced Technical Science

    able to live, grow, and develop on its own.

    capable of living and developing independently; often used regarding seeds, eggs, or foetuses.

    Simple

    The biologist checked if the seeds were still viable after being stored for ten years.

    In context

    The laboratory confirmed that the tissue samples remained viable despite the failure of the primary refrigeration system during the storm.

    non viabledead

Usage viable alternative · viable option · viable solution

How viable are plans to free up prison space in England and Wales?

The Guardian· 11 Aug 2026

But that is relatively simple compared with designing a new viable virus from scratch.

BBC News· 6 Aug 2026

Borrowed from French viable (further from Latin vīta), with semantic influence of Latin viābilis (“passable”).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin French viable
Level C1 · Advanced
Frequency Frequent
Updated