"irregular work" is correct and commonly used in written English.
It is used to describe work that is not consistent or regular in terms of schedule, hours, or nature. Example: "As a freelancer, I often have irregular work, with some weeks being busy and others being slow."
We included two dichotomous variables on the respondent's working hours: shift work and irregular work hours.
Husbands find irregular work as daily wage laborers.
But with irregular work, Hitchcock's stuff has seemed all too ordinary.
In Trinidad, at various times, he found irregular work on national and private sporting bodies and committees.
Schooling is irregular, work is encouraged from a young age and girls are married while in their teens.
These are all irregular work options, but worth investigating for topping up when you're low on cash.
This includes people with irregular working patterns such as contract and part-time workers, and the self-employed.
I'm a single mum; my child was five when I started working, and no nanny would fit into my irregular working pattern, so I had to rely on friends and family.
For instance, a knowledge-intensive working life with irregular working contracts and increasing skill demands requires a new orientation and new working methods in occupational health.
If results are positive, it would provide a new tool in fatigue management, possibly reducing the health risks of irregular working times of both flight crew and shift workers.
Thirdly, waking up and sleeping at the same time may not fit in your schedule and justifiably so, if you have night shifts [security persons], traveling [corporate executives, marketing people], irregular working schedule [fire fighters, police, soldiers].
