ir·re·spon·si·ble
ˌir-i-ˈspän(t)-sə-bəl 
: not responsible: such as
a
: lacking a sense of responsibility
b
: said or done with no sense of responsibility
irresponsible accusations
c
: unable especially mentally or financially to bear responsibility
d
: not answerable to higher authority
an irresponsible dictatorship
: a person who is irresponsible
Examples of irresponsible in a Sentence
Adjective
He's too irresponsible to keep a job for more than a week.
She made irresponsible comments that helped cause the riot.
It would be irresponsible to ignore the threats.
Recent Examples on the Web
Jason Isaac, Oc Register, 23 Dec. 2025
This is particularly true regarding provocative rhetoric, such as absurd statements in the 2010s by irresponsible Iranian politicians that Iran controlled four Arab capitals—Damascus, Baghdad, Beirut, and Sanaa—which were used by securitizing forces to justify their pressure against Iran.
—Mohammad Javad Zarif, Foreign Affairs, 22 Dec. 2025
Yes, this even applies to that irresponsible snowboard bro who just cut you off.
—Frederick Dreier, Outside, 6 Dec. 2025
One can only wonder what else this friend is irresponsible about.
—Jeanne Phillips, Mercury News, 4 Dec. 2025
See All Example Sentences for irresponsible
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Adjective
Families did not suddenly become irresponsible.
—Jason Isaac, Oc Register, 23 Dec. 2025
This is particularly true regarding provocative rhetoric, such as absurd statements in the 2010s by irresponsible Iranian politicians that Iran controlled four Arab capitals—Damascus, Baghdad, Beirut, and Sanaa—which were used by securitizing forces to justify their pressure against Iran.
—Mohammad Javad Zarif, Foreign Affairs, 22 Dec. 2025
Yes, this even applies to that irresponsible snowboard bro who just cut you off.
—Frederick Dreier, Outside, 6 Dec. 2025
One can only wonder what else this friend is irresponsible about.
—Jeanne Phillips, Mercury News, 4 Dec. 2025
See All Example Sentences for irresponsible
Cite this Entry
“Irresponsible.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/irresponsible. Accessed 28 Dec. 2025.
Copy CitationMedical Definition
irresponsible
adjective
ir·re·spon·si·ble
ˌir-i-ˈspän(t)-sə-bəl
: not responsible : mentally inadequate to bear responsibility
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