Thin

редок

redok

(of low viscosity or low specific gravity — see also watery, liquidy, diluted)

редок

redok

(scarce)

те́нок

ténok

(having little thickness or extent from one surface to its opposite)

истенчува

istenčuva

(to make thinner)

ослабува

oslabuva

(to become thinner)

разредува

razreduva

(to dilute)

се истенчува

se istenčuva

(to become thinner)

се тенчи

se tenči

(to become thinner)

слабее

slabee

(to become thinner)

тенчи

tenči

(to make thinner)