2 syllables:
-escent, bessent, cessant, cr., crescent, escent, jessant, ouessant, pesant, pubescent

3 syllables:
accrescent, acescent, albescent, ascessant, calescent, candescent, canescent, caressant, caulescent, concrescent, confessant, decrescent, depressant, excrescent, fervescent, flavescent, florescent, flourescent, fluorescent, fremescent, frutescent, glabrescent, glaucescent, herbescent, ignescent, incessant, increscent, lactescent, languescent, latescent, lutescent, marcescent, nigrescent, pallescent, papescent, pearlescent, petrescent, postpubescent, pre-pubescent, prepubescent, putrescent, quiescent, rancescent, rigescent, rubescent, rufescent, senescent, spinescent, spumescent, sugescent, suppressant, tabescent, torpescent, tumescent, uncessant, virescent, vitrescent

4 syllables:
acaulescent, acquiescent, adipescent, adolescent, adolesent, adultescent, alcalescent, alkalescent, almond crescent, arborescent, cerulescent, cinerescent, circumcrescent, coalescent, contabescent, convalescent, decadescent, decalescent, defervescent, deliquescent, delitescent, detumescent, effervescent, efflorescent, equicrescent, erubescent, evanescent, excandescent, gangrenescent, hyalescent, hypodescent, incalescent, incandescent, incanescent, inflorescent, ingravescent, interessant, intumescent, iridescent, juvenescent, lapidescent, luminescent, maturescent, obmutescent, obsolescent, opalescent, phosphorescent, recalescent, revalescent, revirescent, somnolescent, sonorescent, spinulescent, suffrutescent, supercrescent, violescent, viridescent

5 syllables:
adularescent, anti-depressant, antidepressant, antiputrescent, autofluorescent, inacquiescent, ineffervescent, noneffervescent, preadolescent, rejuvenescent

6 syllables:
bioluminescent, chemiluminescent, immunodepressant, immunofluorescent, immunosuppressant, photoluminescent, s.m.a.r.t, thermoluminescent, triboluminescent

7 syllables:
electroluminescent

2 syllables:
bezant, bezzant, peasant, pheasant, pleasant, present

3 syllables:
proximate, novelist, columnist, somnolent, topgallant, opposite, oscitant, cosecant, occupant, monument, continent, consummate, nominate, postulant, dominant, obstinate, complement, oxidant, opulent, protestant, postulate, prominent, cognizant, confident, consonant, populist, condiment, holibut, flocculent, consulate, consequent, communist, at present, crow pheasant, unpleasant

4 syllables:
psychologist, emolument, seismologist, subdominant, incompetent, incontinent, deipnosophist, predominate, gymnosophist, inconsequent, pathologist, predominant, geologist, monopolist, ennoblement, self-confident, urologist, neurologist, concomitant, improvident, apologist, approximate, fifth columnist, zoologist, argus pheasant, birthday present, christmas present, golden pheasant, most unpleasant, omnipresent, wedding present

5 syllables:
gynecologist, anthropologist, entomologist, antioxidant, rheumatologist, ideologist

6 syllables:
historical present

7 syllables:
anesthesiologist