The meaning of Talk-down-to

phrasal verb

Speak patronizingly or condescendingly to someone.

Usage examples:

There's an art to informing people without talking down or pandering to them

phrasal verb

To speak to someone in a simple way, as if the person cannot understand things as well as you can

Usage examples:

Our history teacher never talks down to us.

phrasal verb

To talk to someone as if they were less important than you

Usage examples:

Secretarial staff are most likely to be talked down to.