Dictionary.com
Thesaurus.com
Synonyms

undiplomatic

British  
/ ˌʌndɪpləˈmætɪk /

adjective

  1. lacking in diplomacy

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Pretoria earlier this month summoned the new US ambassador to explain "undiplomatic remarks" about South African racial policies and court decisions.

From Barron's • Mar. 26, 2026

His prior public service, as councilor, then deputy mayor, of a Sydney suburb ended abruptly in 2009 amid displays of undiplomatic temper.

From Salon • Aug. 2, 2025

A former Greek foreign minister known for his undiplomatic outbursts and on whose watch Greece suffered one of its most embarrassing foreign policy debacles in 1999.

From Seattle Times • Dec. 3, 2023

The remarks were certainly undiplomatic at a summit designed to demonstrate Nato unity.

From BBC • Jul. 12, 2023

The Foreign Secretary in his reply, while mildly deprecating these expressions, allowed his real sentiments to appear with a most undiplomatic insouciance.

From Queen Victoria by Strachey, Lytton