spiteful
adjective
full of spite or malice; showing spite; malicious; malevolent; venomous.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
But it always comes back—the memory of his innumerable acts of kindness, of his efficiency, of his unspiteful tongue.
From The Good Soldier by Ford Madox Ford