gigantesque

/ʒi.ɡɑ̃.tɛsk/
1.
adjectivemasculine | feminineSing | Plur

very large in size; huge; gigantic

On a vu un paquebot gigantesque dans le port de Marseille.

We saw a massive cruise ship in the port of Marseille.

Synonyms:énorme, immense, colossal
2.
adjectivemasculine | feminineSing | Plur

very great in degree, scale, or intensity; enormous

C'est un travail gigantesque — il faudra plusieurs semaines pour tout terminer.

It's an enormous amount of work — it will take several weeks to finish everything.

Synonyms:énorme, phénoménal, monstrueux