The indefinite form (nenoteiktā galotne) is used when the quality is mentioned for the first time or in a general way — much like the English indefinite article ‘a’.
Masculine indefinite adjectives end in -s or -š, feminine in -a or -e.
Examples
jauns
new, young (m.)
jauna
new, young (f.)
balts
white (m.)
balta
white (f.)
Tā ir jauna māja.
That is a new house.