Not/never have a good word to say for/about somebody/something - Idioms by The Free Dictionary
not/never have a good word to say for/about somebody/something
never have a good word to say about (someone of something)
To always say negative, hurtful, or critical things about someone or something; to never or rarely say something positive or encouraging about someone or something. No wonder the kid's self-esteem is so low—his parents never have a good word to say about him. I don't understand why she stays in the same job if she never has a good word to say about it.
not/never have a good word to ˈsay for/about somebody/something (informal) not/never have anything positive to say about somebody/something: She rarely has a good word to say about her neighbours. ♢ Nobody has a good word to say for the new computer system. OPPOSITE: praise somebody/something to the skies