
lästig
annoying
Unpleasant, disruptive, or irritating, so that one feels bothered.
Die ständigen Werbeanrufe sind wirklich lästig.
The constant advertising calls are really annoying.
annoying
Loading your saved state.

annoying
Unpleasant, disruptive, or irritating, so that one feels bothered.
Die ständigen Werbeanrufe sind wirklich lästig.
The constant advertising calls are really annoying.
The adjective 'lästig' (annoying) is closely related to the noun 'die Last' (the burden). Something that is 'lästig' feels like a small, disruptive burden or strain.
Diese Mücke ist wirklich lästig.
This mosquito is really annoying.
To express WHOM something bothers, a dative construction is often used. The person who feels bothered is in the dative.
Die laute Musik ist den Nachbarn lästig.
The loud music is annoying to the neighbors.
'Lästig' (annoying) often describes small, recurring disturbances. Typical combinations are 'eine lästige Angewohnheit' (an annoying habit), 'eine lästige Pflicht' (an annoying duty / chore), or 'lästige Insekten' (annoying insects).
Das Ausfüllen der Formulare ist eine lästige Pflicht.
Filling out the forms is an annoying chore.
annoying
Nervig and lästig can both describe something that repeatedly causes disturbance. Nervig is more colloquial and emphasizes personal irritation. Lästig presents the thing more as an unpleasant nuisance or burden. Depending on the perspective, both can fit the same situation.

Die häufigen Werbeanrufe sind bei der Arbeit besonders lästig.
The frequent advertising calls are especially bothersome at work.
Diese ständigen Werbeanrufe sind echt nervig!
These constant advertising calls are really annoying!