Every single day; recurring daily. The word emphasizes regularity and often also the routine or monotony of a process.
example
Er erledigt seine Aufgaben tagtäglich mit der gleichen Sorgfalt.
He completes his tasks day after day with the same care.
Usage tips
Word composition
The word 'tagtäglich' (day after day) is an intensification of 'täglich' (daily). It is made up of 'Tag' (day) and 'täglich' (daily). This doubling emphasizes the uninterrupted regularity and recurring nature of an event.
EXAMPLE
Er fährt tagtäglich mit dem Fahrrad zur Arbeit.
He rides his bike to work day after day.
Position in the sentence
As an adverb, 'tagtäglich' (day after day) can appear in different places in the sentence. It often stands directly after the conjugated verb or at the beginning of the sentence for emphasis. When it stands at the beginning, the verb follows in second position.
EXAMPLE
Wir erleben tagtäglich neue Herausforderungen.
We face new challenges day after day.
Emphasizing routine
The word 'tagtäglich' (day after day) is often used to describe a routine that is perceived as monotonous, exhausting, or unchanging. It can have a slightly negative or resigned connotation.
EXAMPLE
Sie muss tagtäglich die gleichen, langweiligen Berichte schreiben.
She has to write the same boring reports day after day.
Compare with
antonym
tagtäglich vs selten
rare / seldom
'selten' and 'tagtäglich' both describe how often something happens. They are clear opposites. 'Selten' means that something happens only sometimes or almost never. 'Tagtäglich' means that something happens every single day. The word often emphasizes a fixed routine or something that is constantly repeated. If something only happens now and then, you say 'selten'; if it happens every day, 'tagtäglich' fits.
tagtäglich
Lukas fährt tagtäglich mit dem Bus zur Arbeit.
Lukas takes the bus to work day after day.
selten
Jan trainiert wegen der Arbeit nur selten im Sportverein.
Because of work, Jan only rarely trains at the sports club.