perturbar
verbCEFR B2
What does “perturbar” mean in English?
to disturb, to disrupt
to disturb, to disrupt (to interfere with a cycle or equilibrium; perturbar el orden / un equilibrio)
Example sentences
Los cambios bruscos de temperatura pueden perturbar los ciclos de reproducción de numerosas especies marinas.
Sudden temperature changes can disrupt the reproduction cycles of numerous marine species.
La introducción de especies invasoras perturba el equilibrio del ecosistema de manera irreversible.
The introduction of invasive species disturbs the ecosystem's balance in an irreversible way.
El ruido continuo de las obras perturbó el sueño de los vecinos durante varios meses.
The continuous noise from the building works disturbed residents' sleep for several months.
How to use it
Perturbar means 'to disturb', 'to disrupt', or 'to interfere with' — affecting the natural balance, cycle, or equilibrium of something. Often used in scientific, environmental, and psychological registers. More specific than alterar (change) and more formal than molestar (bother).
Common mistake
Perturbar targets systems, cycles, and balances — not individuals directly (use molestar or incomodar for personal disturbance). Perturbar vs. trastornar: perturbar affects equilibrium; trastornar disrupts functioning or routine. The adjective perturbador/a (disturbing, unsettling) is a useful B2 pairing.