das Wörterbuch Englisch Minus Englisch

shy and not wanting to make people notice you or talk about you Englisch:

She was modest and diffident about her achievements.

for someone who makes a living performing for other people, the actress is remarkably diffident in real life

He was too diffident to express his opinion.

For those who are rather diffident about facing a public examination, there are helpful ‘proxy writers’ available