scurrilous

a scurrilous attack on someone

a scurrilous attack on his integrity.

a very funny collection of bawdy and scurrilous writings.

make scurrilous attacks upon sb.

The hoodlums defiled the church with their scurrilous writing.

He spent much of the campaign on the low road, making scurrilous and unsubstantiated remarks about the incumbent's past.

It seems His Excellency has made him privy to a scurrilous story concerning Lady Mary and the late Mr Pamuk.

Satan dropped it there, I take it, intending a scurrilous jest against your reverence.

I did this with a heavy heart and a deep commitment to fight these scurrilous charges.