English Reference

Word

irreconcilable

Phoneticsir·rec·on·cil·able

US/ˌɪˈɹɛkənˌsaɪɫəbəɫ/

UK/ɪɹˈɛkənsˌaɪləbəl/

Definition

adj. describing two ideas, facts, or people that are so different they can never agree or work together. You use this when a situation is impossible to fix because the two sides are completely opposite.

adj. representing ideas, beliefs, or situations that are so fundamentally different that they cannot be made compatible. Often describes differences that lead to the permanent end of a relationship or legal agreement.

Examples

“The two friends had irreconcilable differences about politics.”

“After months of failed mediation, the couple decided to divorce due to irreconcilable differences in their long-term goals.”

“The historian argued that the two cultures held irreconcilable views on land ownership, making a peaceful resolution to the border dispute virtually impossible.”

Examples

simple

“The two friends had irreconcilable differences about politics.”

contextual

“After months of failed mediation, the couple decided to divorce due to irreconcilable differences in their long-term goals.”

complex

“The historian argued that the two cultures held irreconcilable views on land ownership, making a peaceful resolution to the border dispute virtually impossible.”

Collocations

Common phrases and expressions where native English speakers use the word “irreconcilable” in context.

Verb

01. deem irreconcilable

“The court deemed their differences irreconcilable and granted a divorce.”

verb + adj

02. remain irreconcilable

“Despite months of intense negotiation, their core demands remain irreconcilable.”

verb + adj

Adjective

03. fundamentally irreconcilable

“The two philosophies are fundamentally irreconcilable and cannot coexist in one system.”

adv + adj

04. seemingly irreconcilable

“The mediator struggled to bridge the gap between their seemingly irreconcilable positions.”

adv + adj

Noun

05. irreconcilable conflict

“The war was fueled by irreconcilable conflicts over land and religious identity.”

adj + noun

06. irreconcilable difference

“The couple cited irreconcilable differences as the reason for their legal separation.”

adj + noun

07. irreconcilable opposition

“The proposal met with irreconcilable opposition from the local community.”

adj + noun

08. irreconcilable with the facts

“His testimony was found to be completely irreconcilable with the physical evidence.”

09. prove to be irreconcilable

“The two accounts of the event proved to be irreconcilable after further investigation.”

Usage

Typically used to modify abstract nouns like 'differences', 'conflicts', or 'positions'.

Real-World Examples

“James Murdoch's relationship with his father and older brother Lachlan appears irreconcilable.”
BBC 24 Dec 2025
“Following their discussions, it became clear that Valcambi and the ASFCMP have irreconcilable differences and that continued collaboration is no longer an option," the association said in its statement.”
Reuters 27 Oct 2023
“Speaking at the Greenwich Economic Forum, Dalio said that there are irreconcilable differences between the world's two biggest economies, citing as examples the independence of Taiwan, the battle for chips and geopolitics.”
Reuters 3 Oct 2023
“Morocco, which annexed the northwest African territory in 1975, and ethnic Sahrawi independence movement Polisario Front have maintained irreconcilable positions since the talks began last June, frustrating United Nations mediators.”
Reuters 13 Mar 2008

Etymology

Borrowed from Middle French irréconciliable, from Late Latin irreconciliābilis, from in- (“not”) + reconciliō (“I reconcile”) + -ābilis (“-able”). By surface analysis, ir- + reconcilable.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Related words

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
Frequency
Occasional
Level
C1 · Advanced
Updated

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