accidental

柯林斯词典

1. ADJ An accidental event happens by chance or as the result of an accident, and is not intended. 意外的
...the tragic accidental shooting of his younger brother. …對他弟弟的悲劇性意外槍擊。
2. accidentallyADV 意外地[ADV with v]
A policeman accidentally killed his two best friends with a single bullet. 一位警察意外地用一顆子彈殺死了他的兩個最好的朋友。

All our household goods are insured against accidental damage .
The coroner concluded that his death was accidental.
Our meeting wasn't planned - it was completely accidental.
She says she didn't mean to break it, but I don't think it was accidental.
When my condition improved after taking the herbal medicine , the doctor said it was purely accidental.