[thaumasiotes]

I agree with the issue of stress, but it seems less problematic to me than the vowel mismatch. Orange and door use the FORCE vowel in their first syllables. Syringe doesn't; it uses NURSE, and this is enough to prevent the words from rhyming.

(Perhaps you view orange as using the START vowel in its first syllable. That's still not NURSE and still doesn't rhyme with syringe.)