Incumbent

Adjective

 * 1) imposed on someone as an obligation, especially due to one's office
 * Proper behavior is incumbent on all holders of positions of trust.
 * 1)  resting on something else
 * 2) being the current holder of an office
 * If the incumbent senator dies, he is replaced by a person appointed by the governor.

Noun

 * 1) The current holder of an office, such as ecclesiastical benefice or a an elected office.
 * 2)  A holder of a position as supplier to a market or market segment that allows the holder to earn above-normal profits.

Thesaurus
addressee, artist-in-residence, beetle, beetle-browed, beetling, behooving, benefice-holder, beneficiary, binding, bridging, burdensome, chargeable to, commanding, compulsory, cumbersome, cumbrous, demanding, denizen, dweller, habitant, hirer, holdover, homesteader, house detective, imbricate, impendent, impending, incumbent on, inhabitant, inhabiter, inmate, inpatient, ins, intern, jack-in-office, jutting, lame duck, lapping, leaseholder, lessee, live-in maid, locum tenens, lodger, lowering, lumpish, mandatory, massive, necessary, new broom, obligatory, occupant, occupier, office-bearer, officeholder, official, onerous, oppressive, overarched, overhanging, overhung, overlapping, overlying, paying guest, pending, prescribed, president-elect, projecting, public official, public servant, renter, required, residencer, resident, resident physician, residentiary, resider, roomer, shingled, sojourner, spanning, squatter, sublessee, subtenant, superincumbent, tenant, tenant at sufferance, tenant for life, underlessee, unwieldy

Etymology
From, from stem incumbent-, of incumbens:, from  persent participle of incumbere:

Adjective

 * Finnish: velvollisuutena oleva


 * Italian: incombente, obbligatorio


 * Dutch:
 * French: en titre, sortant
 * German:
 * Hungarian: hivatalban lévő


 * Italian: titolare, in carica
 * Korean: 재임중인
 * Norwegian: embedsmann
 * Portuguese: titular

Noun

 * Dutch:
 * Estonian: ametisolija; ametikoha täitja
 * Finnish: viranhaltija


 * German:
 * Italian: in carica, titolare