1. An order or command that does not follow established rules, procedures, or legal norms
The military officer issued an irregular order that bypassed the chain of command.
O oficial militar emitiu uma ordem irregular que contornou a cadeia de comando.
2. In legal or administrative contexts, an instruction that violates standard protocols or regulations
The judge ruled that the arrest was made under an irregular order.
O juiz determinou que a prisão foi feita sob uma ordem irregular.
3. An instruction given in an unorthodox or non-standard manner
The company was criticized for giving irregular orders without proper documentation.
A empresa foi criticada por emitir ordens irregulares sem documentação adequada.