This is the 11010th most frequent Portuguese word.
irregulares
"Irregulares" means "irregular" or "not conforming to a rule or standard."
Here, 'irregulares' is used as an adjective to describe the 'forms' of verbs that do not follow standard conjugation rules.
As formas irregulares dos verbos podem ser desafiadoras.
Irregular verb forms can be challenging.
In this sentence, 'irregulares' qualifies 'climatic cycles', indicating that the cycles occur without a consistent pattern.
Os ciclos climáticos irregulares afetam a agricultura.
Irregular climatic cycles affect agriculture.
'Irregulares' here modifies 'horários' (schedules), meaning the schedules lack regularity or fixed occurrence.