Faddish is a related term of irresponsible.
As adjectives the difference between faddish and irresponsible
is that faddish is of or pertaining to a fad; being a fad while irresponsible is lacking a sense of responsibility; incapable of or not chargeable with responsibility; unable to respond to obligation.
As a noun irresponsible is
someone who is not responsible.
irresponsible
English
Adjective
(
en adjective)
Lacking a sense of responsibility; incapable of or not chargeable with responsibility; unable to respond to obligation.
Not responsible; not subject to responsibility; not to be held accountable, or called into question.
Noun
(
en noun)
Someone who is not responsible.
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