3 syllables:
beatable, cheatable, creatable, eatable, heatable, treatable, tweetable

4 syllables:
completable, deletable, depletable, entreatable, escheatable, intreatable, repeatable, unbeatable, uneatable, untreatable

5 syllables:
uncomeatable, undefeatable, unrepeatable, v.unbeatable

3 syllables:
tenable, equable, estival, medical, stretchable, sensual, skeletal, sextuple, pessimal, sensible, edible, meltable, vegetable, vendible, retinal, festival, aestival, flexible, spectacle, sentinel, pedestal, sepulchral, bendable, legible, credible, methanal, peccable, epochal, plentiful, sectional, seconal, decimal, vegetal, seneschal, genital, skeptical, ethical, tentacle, testable, jezebel, seminal, rentable, pennoncel, requital, spendable, chemical, pentacle

4 syllables:
impregnable, acceptable, ineffable, conventicle, dimensional, condemnable, detectable, expressible, compensable, congressional, inflectional, electable, dispensable, preventable, unquenchable, processional, injectable, digestible, adjectival, atenolol, professional, illegible, heliacal, confessional, comestible, inflexible, delectable, insensible, ascendable, defensible, trigeminal, contemptible, defendable, correctional, extendable, untenable, amendable, centesimal, accessible, commendable, amenable, intestinal, respectable, affectional, collectible, lamentable, expendable, directional, correctable, perceptible, receptacle, contestable, execrable, recessional, polemical, incredible, conceptional, dependable, detestable, congenital, ostensible, preferable, impeccable, collectable, compressible, susceptible, obsessional, conventional, intentional, inedible, exceptional, extensible, acetaldol, honeysuckle

5 syllables:
hexadecimal, unexceptional, incompressible, apprehensible, comprehensible, inextensible, bidirectional, inaccessible, undependable, three-dimensional, neurochemical, indispensable, unconventional, nonprofessional, two-dimensional, unintentional, indigestible, hypothetical, inexpressible, reprehensible, irrepressible, pyrotechnical, insurrectional, indefensible, planetesimal, insusceptible, health professional, unacceptable, homosexual, unprofessional, bush honeysuckle, fly honeysuckle, french honeysuckle, hall's honeysuckle, swamp honeysuckle, white honeysuckle

6 syllables:
omnidirectional, semiprofessional, heterosexual, recurring decimal, unidirectional, repeating decimal, multidimensional, unidimensional, paraprofessional, coral honeysuckle, hairy honeysuckle, swamp fly honeysuckle, trumpet honeysuckle, yellow honeysuckle

7 syllables:
italian honeysuckle, jamaica honeysuckle, japanese honeysuckle, new-zealand honeysuckle

8 syllables:
european honeysuckle, himalaya honeysuckle

9 syllables:
american fly honeysuckle, european fly honeysuckle