For one thing, âTrumpâ is not his real name. The Donaldâs grandfather was a German immigrant named Frederick Drumpf who emigrated to the U.S. in 1885 and became a naturalized citizen in 1892. At some point, he started calling himself âFrederick Trump,â but it is unclear if he ever changed his name officially.
incumbent. adj. 1. (often: postpositive and foll by on or upon and an infinitive) morally binding or necessary; obligatory: it is incumbent on me to attend.
Princeton's WordNet(5.00 / 1 vote)Rate this definition: 1  incumbent, officeholder(adj) the official who holds an office. 2  incumbent(adj) lying or leaning on something else. 3  incumbent(adj) necessary (for someone) as a duty or responsibility; morally binding.  incumbent(adj) currently holding an office.