infeasible

Upper-Intermediate (B2)

IPA: /ɪnˈfiːzəbl/

KK: /ɪnˈfiːzəbl/

adjective

Definition

Not possible to do or achieve; impractical.

Example

The plan to build a bridge in such a short time is infeasible.

Conversation

I was thinking about trying to climb that mountain this weekend.

That sounds exciting, but isn’t it a bit infeasible for us right now?

Yeah, you might be right; we haven't trained for something that intense.

Exactly! Maybe we should stick to a smaller hike instead.

Synonyms & Antonyms

Synonyms

impractical

unworkable

unrealistic

Antonyms

feasible

practical

possible

Root Explanation

Infeasible → It is formed from "in-" (meaning not) and "feasible" (from Latin "facere", meaning to do or make). The word "infeasible" means not able to be done or made, indicating something that is impractical or impossible to achieve.

Memory Tip

Think of 'not' ('in-') being combined with 'able to do' ('feasible') — that's why infeasible means something that cannot be done.

Visually Confused Words

indefeasible

unfeasible

inevasible

inerasible