unattainable

/ ˌʌnəˈteɪnəbəl /

adjective

1. not achievable or accomplishable

   an unattainable goal

Example Sentences

Logically, they know the goal itself is unattainable, but the endeavour to get there can take them to new heights.

Read more on BBC

"With our new system, we can achieve levels of efficiency that were previously almost unattainable," says Prof. Harald Giessen, Head of the 4th Physics Institute at the University of Stuttgart.

Read more on Science Daily

A Jewish homeland in backwaters of the Ottoman empire seemed unattainable, and pressing domestic concerns like slavery and temperance took precedence.

Read more on The Wall Street Journal

Critics say they are often doubly flawed: overly expensive if targets prove easier than predicted; and counterproductive if the targets become unattainable and executives see little reason to stick around.

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"But for it to become truly sustainable, there would need to be a profound change in production," she told AFP, adding that the industry continued to sell "an unattainable ideal".

Read more on Barron's

Related Words

• futile 
• hopeless 
• impassable 
• impervious 
• impractical 
• inaccessible 
• inconceivable 
• insurmountable 
• unimaginable 
• unreasonable 
• unthinkable 
• unworkable 
• useless