Words That Rhyme With "Serotinal" :

3 syllables:

doctrinal, nautical, nitinol, nominal, optimal, retinal, retinol

4 syllables:

abdominal, adnominal, cognominal, matutinal, prenominal, pronominal

5 syllables:

multinominal, subabdominal

6 syllables:

intraabdominal