11
compulsory(adjective, obligatory)
11
necessary(adjective, obligatory)
10
occupant(noun, person, inhabitant, officeholder)
9
officeholder(noun, agent, director, representative, minister)
8
binding(adjective, duty, obligatory)
8
official(noun, person, government, officeholder, in office)
7
obligatory(adjective, duty)
6
inhabitant(noun, person, inhabitant)
6
lodger(noun, inhabitant)
6
mandatory
6
required(verb, adjective)
5
compelling(adjective, obligatory)
5
denizen(noun, inhabitant)
5
dweller(noun, inhabitant)
5
inmate(noun, inhabitant)
5
lame duck(noun, expression, idiom, weakling, elected)
5
resident(noun, inhabitant)
5
superincumbent(adjective, height, gravity)
5
tenant(noun, inhabitant)
4
behooving
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APASmart Define. (2015). Incumbent thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/incumbent/thesaurus/synonyms
ChicagoSmart Define. 2015. "Incumbent thesaurus" https://smartdefine.org/incumbent/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, Incumbent thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/incumbent/thesaurus/synonyms>.
MLASmart Define. "Incumbent thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/incumbent/thesaurus/synonyms>