Synonyms of quinquennial

1 Syllable
fifth
2 Syllables
pentad, lustrum, quincunx, cinque, fiver, quintan
3 Syllables
pentangle, pentacle, pentagon, quintuple, pentagram, pentagons, quincunxes, quinary, quinate, pentagrams, quintuplet, cinquefoil, quinquennium, quintette
4 Syllables
pentagonal, pentamerous
5 Syllables
quintuplicate