unfeasible

/ʌnˈfiːzəbl/ (bre, ipa) · [ənfˈizəbəl] /ʌnˈfiːzəbl/ (ame, ipa) · [ənfˈizəbəl] /ˌən-ˈfē-zə-bəl How to pronounce unfeasible (audio)/ (ame, mw)

unfeasible — 形容詞

  • unfeasiblepositive
  • more unfeasiblecomparative
  • most unfeasiblesuperlative

1. describes a project, suggestion, or method that cannot succeed because of real-w

1.形容詞B2
釋義

不可行

無法實現或執行的

describes a project, suggestion, or method that cannot succeed because of real-world difficulties such as high cost, lack of time, or physical limitations.

例句

The Tanaka family found the steep cliff house unfeasible due to cost and safety risks.

Tanaka 一家認為陡峭懸崖上的房子因成本和安全風險而不可行。

unfeasible + because of [reason / cost]

After reviewing the budget, Maya said a three-week product launch was unfeasible.

審查預算後，Maya 表示三週內推出產品是不可行的。

同義詞
  • impossible

    stronger and more absolute; 'impossible' means cannot be done under any circumstances, while 'unfeasible' suggests practical obstacles

  • impractical

    focuses on inconvenience or inefficiency rather than outright impossibility; 'impractical' is less strong than 'unfeasible'

  • unworkable

    used mainly for plans, systems, or methods that fail in practice

反義詞
  • feasible

    direct opposite; means possible and practical to achieve

  • workable

    opposite of 'unworkable'; describes a plan or system that functions well

文法句型

it + be + unfeasible + to-infinitive

something + be + unfeasible

find/consider/deem + something + unfeasible

用法筆記

More formal than 'not possible' or 'can't be done'. Often used in written reports, business plans, and academic discussions. In everyday conversation, speakers usually say 'not feasible' or 'impossible' instead.

常見錯誤

❌The doctor said the surgery was unfeasible to perform.
✅The doctor said it was not feasible to perform the surgery.
💡'unfeasible' is rarely used with an infinitive in that syntactic order; the 'it is unfeasible to...' pattern is more natural.
❌This idea is unfeasible, so give up.
✅This idea is unfeasible, so we need to look at other options.
💡Because 'unfeasible' is formal, pairing it with a very casual imperative creates a register mismatch.