un - clas - si - fied
There are many reasons to learn how to divide unclassified into syllables. Separating a word like unclassified into syllables is mainly to make it easier to read and pronounce. The syllable is the smallest sound unit in a word, and the separation of the unclassified into syllables allows speakers to better segment and emphasize each sound unit.
Knowing how to separate unclassified into syllables can be especially useful for those learning to read and write, because it helps them understand and pronounce unclassified more accurately. Furthermore, separating unclassified into syllables can also be useful in teaching grammar and spelling, as it allows students to more easily understand and apply the rules of accentuation and syllable division.
In the case of the word unclassified, we find that when separating into syllables the resulting number of syllables is 4. With this in mind, it's much easier to learn how to pronounce unclassified, as we can focus on perfecting the syllabic pronunciation before trying to pronounce unclassified in full or within a sentence. Likewise, this breakdown of unclassified into syllables makes it easier for us to remember how to write it.