3 syllables:
allinder, calendar, calender, callander, kalendar, vcalendar

4 syllables:
church calendar, encalendar

5 syllables:
farmer's calendar, hebrew calendar, hindu calendar, jewish calendar, lunar calendar, moslem calendar, muslim calendar, roman calendar, solar calendar

6 syllables:
appointment calendar, julian calendar

7 syllables:
gregorian calendar

9 syllables:
ecclesiastical calendar, revolutionary calendar

13 syllables:
2021 local electoral calendar

3 syllables:
acular, adductor, agateware, albacore, amateur, angular, annular, aquifer, atmosphere, avatar, bachelor, balancer, bannister, battledore, battler, blasphemer, blastomere, blastopore, blastosphere, blastular, cadastre, caliber, caliper, camelhair, canister, cannular, canvasser, catheter, cavalier, challenger, chancellor, crackleware, dabbler, falconer, fastener, gallagher, glandular, grandmother, graniteware, granular, hackamore, handcolor, handlebar, handler, jacamar, janitor, labrador, lackluster, lacklustre, lancaster, lapplander, lavender, manager, massacre, matador, paddler, passenger, prattler, rattler, saddler, saltshaker, salvador, sapsucker, scapular, scavenger, straphanger, stratosphere, tablature, tanager, traveler, traveller, vascular, vladimir, waggoner, wagoner, wrangler, zanzibar

4 syllables:
ambassador, avascular, capacitor, decameter, dekalitre, dekameter, diameter, elastomer, el salvador, embassador, enamelware, entablature, examiner, excalibur, french lavender, great grandmother, ground rattler, hexameter, hexangular, horse wrangler, knight bachelor, lord chancellor, octameter, octangular, parameter, pentameter, pentangular, rectangular, san salvador, sash fastener, sea lavender, slide fastener, snap fastener, spectacular, spike lavender, stage manager, titanosaur, triangular, vernacular, vice chancellor, world traveler, zip-fastener

5 syllables:
acetabular, bank examiner, business traveler, city manager, cross-examiner, district manager, english lavender, fellow traveler, fellow traveller, hotel manager, iron chancellor, like an amateur, lord high chancellor, paper fastener, prairie rattler

6 syllables:
bypass capacitor, cardiovascular, commercial traveler, commercial traveller, general manager, hearing examiner, semidiameter, trimming capacitor, vernier caliper

7 syllables:
black english vernacular, corrugated fastener, medical examiner, micrometer caliper

9 syllables:
electrolytic capacitor