Usage patterns
不規則な生活を送るto lead an irregular lifestyle
I stay up late a lot and lead an irregular lifestyle.
生活が不規則になるfor one's lifestyle to become irregular
Since I started working from home, my lifestyle has become irregular.
不規則な〈時〉irregular (hours, timing, etc.)
In this job, the working hours are often irregular.
不規則に〈動詞〉to do something irregularly / without a fixed pattern
This data changes irregularly.