3 syllables:
principal, principale, principle

4 syllables:
first principle, in principle, life principle, school principal, subprincipal, vice-principal

5 syllables:
basic principle, bitter principle, legal principle, moral principle, pleasure principle, vital principle, working principle

6 syllables:
bernoulli's principle, exclusion principle, judicial principle

7 syllables:
fundamental principle, reality principle, uncertainty principle, victoria principal

8 syllables:
pauli exclusion principle

2 syllables:
climbable

3 syllables:
sinkable, cinquefoil, printable, risible, synchronal, clinical, vincible, pitiful, pivotal, livable, criminal, tillable, imbecile, liveable, syllable, integral, biblical, shrinkable, finagle, bimetal, minimal, mythical, binnacle, thinkable, visible, quizzical, mixable, digital, biddable, visual, drinkable, pinnacle, fixable, pinochle, bridgeable, miscible, trigonal, typical, fictional, victual, bindable, cystocele, finical, silicle, thimbleful

4 syllables:
unbridgeable, indictable, invisible, permissible, disenable, disyllable, pontifical, original, veridical, traditional, provisional, transmissible, forgivable, war criminal, admissible, despicable, immiscible, convincible, rescindable, assignable, equivocal, dividable, transmittable, predictable, germicidal, anticlinal, unsinkable, conditional, invincible, reciprocal, divisional, undrinkable, univocal, divisible, hospitable, unprintable, meningocele, juridical, miserable, medicinal, episcopal, nutritional, disciplinal, explicable, formidable, admittable, antipodal, additional, unthinkable, resistible, political, municipal, extricable, unlivable, transitional, dissyllable, admittible, duplicable, nonfictional, papistical, sophistical, trisyllable, unclimbable, unliveable, unmixable, unshrinkable

5 syllables:
eosinophil, unpredictable, paralytical, polysyllable, reconcilable, appositional, unforgivable, inhospitable, apparitional, irresistible, inadmissible, unequivocal, unoriginal, curvilineal, diacritical, aboriginal, conciliable, inexplicable, archiepiscopal, unconditional, individual, octosyllable, archepiscopal, decasyllable, desperate criminal, monosyllable, nonmedicinal, nonreciprocal, nontraditional, nontransmissible, suppositional, unassignable, unmedicinal, untraditional

6 syllables:
aphrodisiacal, paradisiacal, inextinguishable, definite integral, coenobitical

7 syllables:
indefinite integral, habitual criminal, myelomeningocele, psychoanalytical