irresponsibleadjective
uk/ˌɪr.ɪˈspɒn.sə.bəl/us/ˌɪr.əˈspɑːn.sə.bəl/disapprovingB2 not thinking enough or not worrying about the possible results of what you do:
[ + to infinitive ] It would be irresponsible to ignore these warnings.
Thesaurus: synonyms and related words
Inconsiderate
- cavalier
- cowboy
- crass
- inconsiderate
- indiscreet
- indiscretion
- indiscriminate
- insensitive
- tactless
- thoughtless
- uncaring
- unchristian
- unthinking
- wanton
irresponsibly
adverb uk/ˌɪr.ɪˈspɒn.sə.bli/us/ˌɪr.əˈspɑːn.sə.bli/
It's unlike you to behave so irresponsibly.
irresponsibility
noun [ U ] uk/ˌɪr.ɪˌspɒn.səˈbɪl.ə.ti/us/ˌɪr.əˌspɑːn.səˈbɪl.ə.t̬i/
It was an act of gross irresponsibility to leave someone who wasn't properly trained in charge of the machine.