noun
non-regular worker; non-permanent employee; temporary worker
Refers to workers not employed under permanent, full-time contracts, including part-timers, temps, contract workers, and dispatched workers. Often contrasted with 正規労働者 (regular employees).
非正規労働者の割合が年々増えている。
The proportion of non-regular workers is increasing year by year.
彼女は非正規労働者として工場で働いている。
She works at a factory as a non-permanent employee.
Compound of 非 (non-), 正規 (regular, standard), and 労働者 (worker).