incomprehensible

adjective

in·​com·​pre·​hen·​si·​ble (ˌ)in-ˌkäm-pri-ˈhen(t)-sə-bəl 

1

: impossible to comprehend : unintelligible

incomprehensible instructions

2

archaic : having or subject to no limits

incomprehensibility

(ˌ)in-ˌkäm-pri-ˌhen(t)-sə-ˈbi-lə-tē 

noun

incomprehensibleness noun

incomprehensibly

(ˌ)in-ˌkäm-pri-ˈhen(t)-sə-blē 

adverb

Synonyms of incomprehensible

• unintelligible
• mysterious
• unfathomable
• confusing
• uncanny
• esoteric
• impenetrable
• obscure
• cryptic

Examples of incomprehensible in a Sentence

I found his behavior utterly incomprehensible.

It's incomprehensible to me that he could have acted that way.

Recent Examples on the Web

But given the profundity of her subject matter and the near-universal awe her art inspires, perhaps this sense of futility gestures at the incomprehensible, even transcendent aura around Petviashvili’s works. — The Editors Of Artnews, ARTnews.com, 28 July 2026

Here are three stars that appear neatly connected overhead, but in reality, one is separated by an incomprehensible distance. — Jamie Carter, Space.com, 24 July 2026

By that point, almost five minutes down on yellow jersey Tadej Pogačar, the Tour may already have been done — save for an incomprehensible effort over Alpe d’Huez, or misfortune to Pogacar himself. — Jacob Whitehead, New York Times, 21 July 2026

But when asked to convey human-woman concerns, like a shitty dad, a shitty husband, and a shitty mother-in-law, that intense gaze can become inscrutable, even incomprehensible — a closed door to her interiority instead of a way in. — Roxana Hadadi, Vulture, 15 July 2026

Word History

Etymology

Middle English, from Latin incomprehensibilis, from in- + comprehensibilis comprehensible

First Known Use

14th century, in the meaning defined at sense 2

Rhymes for incomprehensible

• comprehensible
• indefensible
• indispensable
• reprehensible
• supersensible
• compensable
• condensable
• defensible
• dispensable
• extensible
• insensible
• ostensible

Kids Definition

incomprehensible

adjective

in·​com·​pre·​hen·​si·​ble (ˌ)in-ˌkäm-pri-ˈhen(t)-sə-bəl 

: impossible to understand

found their behavior incomprehensible

incomprehensibility

-ˌhen(t)-sə-ˈbil-ət-ē 

noun

incomprehensibly

-ˈhen(t)-sə-blē 

adverb