upalnego

In a sentence

• W upalnego dnia warto schować się w cieniu.

  On a hot day, it is worth hiding in the shade.

  The word 'upalnego' is an adjective in the genitive singular form, describing the noun 'dnia' (day), indicating that it is 'hot'.

• Nie mogłem zasnąć w te upalne noce.

  I could not sleep during those hot nights.

  Here, 'upalne' is an adjective for 'noce' (nights) in the accusative plural form, describing its characteristic as 'hot'.

• Spróbuj napić się coś zimnego w upalnego popołudnia.

  Try to drink something cold on a hot afternoon.

  The word 'upalnego' functions as an adjective in the genitive singular form, modifying 'popołudnia' (afternoon), giving it the trait 'hot'.