робкий — meaning in English

robkiy

English meaning

bashful adjective Shy and easily embarrassed, especially around other people.
coy adjective Shy or modest, especially in a deliberately playful or teasing way.
diffident adj Reluctant to trust other people.
humble adjective Not proud or arrogant; modest about one's own importance or abilities.
shamefaced adj Shy or modest, seeming a little embarrassed.
sheepish adj Behaving in a mild, timid way, similar to a sheep.
shy adj Nervous or uncomfortable around other people; reluctant to draw attention to oneself.
timid adj Easily frightened or lacking confidence, especially in unfamiliar situations.

робкий is used for these senses in English:

bashful Shy; not liking to be noticed; socially timid.
coy (dated) Bashful, shy, retiring.
diffident (archaic) Lacking confidence in others; distrustful.
fainthearted Faint of heart; irresolute; fearful.
humble Having a low opinion of oneself; not proud, arrogant, or assuming; modest.
shamefaced Bashful, showing modesty or embarrassment.
sheepish Shy, meek, ashamed or embarrassed.
shy Easily frightened; timid.

adjective Shy or modest, especially in a deliberately playful or teasing way.
adjective Reluctant to give a direct answer, especially about something sensitive.