impossible

adjective

im·​pos·​si·​ble (ˌ)im-ˈpä-sə-bəl 

1

a

: incapable of being or of occurring

b

: felt to be incapable of being done, attained, or fulfilled : insuperably difficult

an impossible deadline

2

a

: extremely undesirable : unacceptable

b

: extremely awkward or difficult to deal with

the actor was impossible on the set

impossibleness noun

Synonyms

• hopeless
• insoluble
• insolvable
• insuperable
• unattainable
• undoable
• unrealizable
• unsolvable

Examples of impossible in a Sentence

It's impossible to predict the future.

The heavy rain made it impossible to see the road.

It's physically impossible for a child to lift that much at once.

It's virtually impossible to book a flight just before the holiday.

These math problems are impossible!

You refuse to help and then criticize me for not doing it right? You're impossible!

My boss is just an impossible woman.

Recent Examples on the Web

Travel conditions in some areas were expected to be difficult if not impossible. —Bruce Finley, The Denver Post, 7 Nov. 2024

Some worry that this will put an impossible burden on public welfare and health care systems and on younger generations who will have to care for a huge population of older people. —Vegard Skirbekk, Foreign Affairs, 6 Nov. 2024

Republicans, with their congenitally overconfident candidate and an entire political operation premised on telling the Republican electorate that Trump’s defeat is literally impossible, have a different problem. —Susan B. Glasser, The New Yorker, 5 Nov. 2024

Bungie recently acknowledged the existence of arguably the worst bug in Destiny 2’s entire history, the revelation that for years now, loot drops have been bugged to make certain perk combinations close to impossible to get, when all combinations were supposedly supposed to be weighted equally. —Paul Tassi, Forbes, 5 Nov. 2024

Word History

Etymology

Middle English, from Anglo-French & Latin; Anglo-French, from Latin impossibilis, from in- + possibilis possible

First Known Use

14th century, in the meaning defined at sense 1a

Phrases Containing impossible

• the impossible

Kids Definition

impossible

adjective

im·​pos·​si·​ble (ˈ)im-ˈpäs-ə-bəl 

1

a

: incapable of being or of occurring

b

: very difficult : hopeless

an impossible situation

2

: very bad or unpleasant

an impossible person

impossibly

-blē

adverb

Legal Definition

impossible

adjective

im·​pos·​si·​ble

: not possible : incapable of being done, attained, or fulfilled

a party's performance is impossible in part