Bulgarian edit

Etymology edit

Borrowed from Russian усе́рдный (usérdnyj).

Pronunciation edit

Adjective edit

усъ́рден (usǎ́rden)

  1. zealous, eager, diligent, assiduous, studious, steady, patient, thorough, painstaking
    Synonyms: старателен (staratelen), внимателен (vnimatelen), грижлив (grižliv)

Declension edit