Incorrect spelling, explanation: incumbent is a formal word, which isn’t commonly used, and probably because of that many English users are unsure when it comes to the spelling of the word. The most common mistake is to spell it as incumbant – with the -a letter instead of -e. This form, however, is wrong and the only correct version is incumbent.

Correct spelling, explanation: the origin of the word incumbent is incumbens, which was a Latin word that initially meant lying on. After some time the word also started to mean to hold a position. Incumbent entered English in the times of Middle English, but first, it was only used to talk about someone who held some office in a church. Later, however, incumbent started to apply to a person holding any position.

Definition of incumbent:
1. noun – a person who holds some official position,
Without the presence of the incumbent this meeting is simply pointless.
2. adjective – when someone has the official position at some institution,
The incumbent Prime Minister will be holding an important meeting with the head of the state in the evening.

Expressions with incumbent:
Some common expressions with incumbent include: commitments incumbent on somebody, single-incumbent job, and debt incumbent on the property.
The commitments incumbent on our SEO are so overwhelming that he is about to resign from his position.
It is a single-incumbent job so we have to choose between the two candidates.
The debt incumbent on the property is so huge that it’s doubtful that somebody will want to buy it.