irresponsible

1 of 3

adjective

Synonyms of irresponsiblenext
: 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

irresponsible

2 of 3

noun (1)

: a person who is irresponsible

irresponsibility

3 of 3

noun (2)

ir·​responsibility ¦i How to pronounce irresponsibility (audio)
¦ir
¦iə+
: the quality or state of being irresponsible

Synonyms of 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
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Adjective
If two reports carry the same meaning, are held to the same standard and are described in the same language, then a careful purchaser would be almost irresponsible not to choose the cheaper one. Amir Tarighat, Forbes.com, 31 July 2026 Another misconception is that people with debt are irresponsible. Jordan Greene, PEOPLE, 30 July 2026 And Obama was being seen at the time as being completely irresponsible in pursuing stimulus. David Frum, The Atlantic, 29 July 2026 The two of them party hard enough and often enough that local police officer Montgomery (Missi Pyle) knows them by name; when some particularly irresponsible carousing crosses a line, however, they’re slapped with a community service sentence. Guy Lodge, Variety, 25 July 2026 See All Example Sentences for irresponsible

Word History

First Known Use

Adjective

1648, in the meaning defined above

Noun (1)

1894, in the meaning defined above

Time Traveler
The first known use of irresponsible was in 1648

Browse Nearby Words

Cite this Entry

“Irresponsible.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/irresponsible. Accessed 4 Aug. 2026.

Kids Definition

irresponsible

adjective
ir·​re·​spon·​si·​ble
ˌir-i-ˈspän(t)-sə-bəl
1
: not legally responsible
2
: having or showing no sense of responsibility
irresponsible behavior
3
: unable to bear responsibility
irresponsibility
-ˌspän(t)-sə-ˈbil-ət-ē
noun
irresponsibly
-ˈspän(t)-sə-blē
adverb

Medical Definition

irresponsible

adjective
: not responsible : mentally inadequate to bear responsibility
irresponsibility noun
plural irresponsibilities

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