Infastidito vs. irritato vs. seccato
While "infastidito", "irritato", and "seccato" are often used interchangeably to express annoyance, they possess distinct nuances regarding the intensity and source of the emotion. "Infastidito" suggests mild disturbance, "irritato" implies visible agitation or friction, and "seccato" conveys a sense of being fed up or drained of patience.
Infastidito
B1This word comes from fastidio (nuisance or bother). It describes the feeling of being disturbed, pestered, or made uncomfortable by an external factor, such as a noise, a bug, or an intrusive person. It is generally a mild to medium form of annoyance focused on a loss of comfort.
Luca era infastidito dal ronzio della mosca.
(Luca was bothered by the buzzing of the fly.)
Mi sento infastidito quando qualcuno mi guarda fisso.
(I feel annoyed when someone stares at me.)
Era visibilmente infastidito dal fumo di sigaretta.
(He was visibly bothered by the cigarette smoke.)
Irritato
B1This implies a stronger emotion than "infastidito". Being "irritato" means feeling agitated, cross, or on the verge of anger (ira). It often describes a reaction to something perceived as unfair, rude, or persistently frustrating that provokes a sharp emotional response.
Il capo era irritato per il ritardo del progetto.
(The boss was irritated by the project's delay.)
La sua voce divenne sempre più irritata durante la discussione.
(Her voice became increasingly irritated during the argument.)
Sono irritato dalla mancanza di rispetto in questo ufficio.
(I am aggravated by the lack of respect in this office.)
Seccato
B2Derived from the word for dry (secco), this suggests that one's patience has metaphorically dried up. Being "seccato" means being fed up, weary, or miffed. It often conveys a mix of boredom and annoyance, or a curt and abrupt attitude resulting from a tedious situation.
Sono seccato di dover ripetere sempre le stesse cose.
(I am fed up with having to always repeat the same things.)
Mi ha risposto in modo seccato, senza guardarmi.
(He answered me in a curt way, without looking at me.)
Giulia era seccata perché il concerto è stato cancellato.
(Giulia was miffed because the concert was cancelled.)
Summary
To choose the right word, focus on the type of feeling involving the annoyance. Use "infastidito" for uncomfortable nuisances that disturb your peace, "irritato" for active friction or agitation that nears anger, and "seccato" when you are bored, disappointed, or your patience has completely run out.