irritante
/iriˈtante/ · B2 · adj
irritating
🦟 irritante = irrita + -nte, the thing that irritates (like an itchy bite)
Spanish irritar + -nte (the -ing ending) gives 'irritating'. English irritant is the same word. Look for 'irrit-' and you have it: irritante describes whatever keeps bothering you, like a mosquito bite or a nagging noise.