incidental

名词 incidental:

1. (frequently plural) an expense not budgeted or not specified
   同义词：incidental expense, minor expense
2. an item that is incidental

形容词 incidental:

1. (sometimes followed by `to') minor or casual or subordinate in significance or nature or occurring as a chance concomitant or consequence
   同义词：incident
2. following as a consequence
   同义词：accompanying, attendant, concomitant, incidental to
3. not of prime or central importance- Pubs.MLA
   同义词：nonessential

1. An incidental action performed by an actor on the stage to fill a pause between lines or to provide interesting detail.
   (演员的)动作演员在舞台上为了填补背台词间的停顿和提供有趣的细节所做的附加动作
2. Fatigue is incidental to a journey in a strange land.
   在陌生的地方旅行，容易疲劳。
3. The incidental expenses of cars in this city are expensive.
   这个城市汽车的附加费用很昂贵。
4. You should know the additional responsibilities that are incidental to the job.
   你该知道做这项工作要承担额外责任。

in.ci.den.tal

adj.（形容词）
Occurring or likely to occur as an unpredictable or minor accompaniment:
伴随发生的：作为意想不到的或非主要的伴随情况发生或可能发生的：
例句：
the snags incidental to a changeover in upper management.See Synonyms at accidental
在改变上层管理时产生的隐患参见 accidental

Of a minor, casual, or subordinate nature:
非主要的，偶发的：有非主要的、随便的或附属性质的：
例句：
incidental expenses.
杂费

n.（名词）
A minor accompanying item or expense:
伴随事件，杂费：非主要的附带项或费用：
例句：
a pocket in the suitcase for incidentals.
放在衣箱中应付临时支出的钱包