1
- happening by chance, unintentionally, or unexpectedly意外的; 非故意的：
a verdict of accidental death
意外死亡裁决
the damage might have been accidental.
损害可能是意外造成的。
2
- incidental; subsidiary非主要的; 附带的：
the location is accidental and contributes nothing to the poem.
地点是非主要的, 对诗没有什么影响。
3
- Philosophy (in Aristotelian thought) relating to or denoting properties which are not essential to a thing's nature【哲】（亚里士多德思想中的）非本质属性的。
1
- Music a sign indicating a momentary departure from the key signature by raising or lowering a note【乐】临时记号。
2
- Ornithology another term for VAGRANT.【鸟】同VAGRANT.
派生词
accidentally
adverb词源
late Middle English (in senses 2 and 3 of the adjective)： from late Latin accidentalis, from Latin accident- 'happening' （see ACCIDENT）.