Word: 

Words and phrases that rhyme with triannual:  (5 results)
4 syllables:
bi-annual, biannual, circannual
5 syllables:
semi-annual
6 syllables:
semiiannual
Words and phrases that almost rhyme †:  (12 results)
3 syllables:
tactual, factual, gradual, annual, manual
4 syllables:
bimanual, sign manual
5 syllables:
artifactual, artefactual, counterfactual
6 syllables:
instruction manual, reference manual
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— Nouns for triannual: magazine, journal, newsletter, meetings, meeting, basis, review, conference
— People also search for: biweekly, fortnightly, quarterly, semiannual, weekly, bimonthly, monthly, semimonthly, interdenominational, multidisciplinary, more...
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