She used to disparage her neighbour every now and then.

Solution (By Examveda Team)

Disparage : regard or represent as being of little worth.
Denigrate : criticize unfairly; disparage.
Belittle : dismiss (someone or something) as unimportant.
Praise : express warm approval or admiration of.
Please : cause to feel happy and satisfied.

Antonym of Disparage is Praise