An ~ event happens by chance or as the result of an accident, and is not deliberately intended.
The jury returned a verdict of ~ death...
His hand brushed against hers; it could have been either ~ or deliberate.
? deliberate
ADJ
~ly
A policeman ~ly killed his two best friends with a single bullet...
A special locking system means the door cannot be opened ~ly.
? deliberately
ADV: ADV with v