Correct spelling for the English word "more unforgetful" is [mˈɔːɹ ʌnfəɡˈɛtfə͡l], [mˈɔːɹ ʌnfəɡˈɛtfəl], [m_ˈɔː_ɹ ʌ_n_f_ə_ɡ_ˈɛ_t_f_əl] (IPA phonetic alphabet).
There is no standard dictionary definition for the term "more unforgetful." However, based on the structure of the word and its opposite, "unforgetful" is often used to describe someone who has a strong ability to remember things, being mindful and unlikely to forget. Therefore, one could interpret the term "more unforgetful" as the comparative form of "unforgetful," indicating an even greater level of not forgetting.
In this context, "more unforgetful" suggests an enhanced capacity to retain information or memories, surpassing the ordinary level of being unforgetful. This term could imply an individual who possesses an extraordinary ability to recall and remember details, experiences, or data. It suggests a heightened cognitive competence in retaining and retrieving stored information compared to others who are simply unforgetful.
The comparative form "more" attached to "unforgetful" intensifies or amplifies the quality of being unforgetful. It implies that the individual is exceptionally adept at recalling things and has an outstanding memory. Their ability to retain and retrieve information may surpass that of others who are unforgetful but may not possess the same high level of memory prowess as someone who is described as "more unforgetful."
"More unforgetful" is not a common word in English. In fact, it seems to be a rare combination of two words that have conflicting meanings. "More" implies an increase or comparative degree, while "unforgetful" means not forgetful or having a good memory. The juxtaposition of these words appears to create a contradictory phrase.
However, if we were to consider "unforgettable" as the term you were referring to, the etymology would be as follows:
"Unforgettable" is derived from the word "forget", which comes from the Old English word "forȝetan". It evolved from the Proto-Germanic word "fergetaną", which meant "to lose" or "to pass over". The negative prefix "un-" was added to create the opposite meaning, resulting in "unforgettable", which means something that cannot be easily forgotten.