The definition of baneful is harmful or destructive to someone or something.
An example of baneful is a toxic gas that leaks from a factory.
- Causing harm, ruin, or death; harmful. See Usage Note at baleful.
- Portending harm; ominous.
- It tended to destroy the power of self-command, and exposed the master to the baneful influences of flattery.
- He was perhaps wanting in firmness of character, and the undue influence exercised over him by unscrupulous ministers, or by the seductions of fairer but no less ambitious votaries of statecraft, led him to make concessions which tarnished the glory of his reign, and were followed by baneful results for the welfare of his empire.
- Such were some of the methods that Torquemada introduced into the Spanish Inquisition, which was to have so baneful an effect upon the whole country.
- From the authentic report of his cup-bearer Nehemiah we see that he was a kind, good-natured, but rather weak monarch, and he was undoubtedly much under the baneful influence of his mother Amestris (for whose mischievous character cf.
- Moreover, a feeling of revulsion against the Jesuits was sweeping over western Europe: they were accused of being the incarnation of the most baneful principles, political, intellectual, moral; and though Clement (1758-1769) protected them against the pressure of the Bourbon courts, his successor Clement XIV.