The word "Dinetical" is spelled with a "d" at the beginning followed by "i-n-e-t-i-c-a-l." The first syllable is pronounced with a voiced dental fricative /ð/ and the second syllable with an unstressed /ɪ/ followed by a nasal /n/. The third syllable includes a stressed /ɛ/ and the fourth syllable begins with a voiceless stop /t/. The final syllable is pronounced with an unstressed /ɪ/ followed by an alveolar lateral approximant /l/.
There is no official entry for the word "dinetical" in established dictionaries, so its etymology cannot be definitively determined. It is possible that "dinetical" is a neologism or a regional term specific to a particular dialect or context. Without further information or a clear definition, it is challenging to trace its origin or provide a more accurate etymology.