The correct spelling of the word "more bouldered" is "more bouldery". The phonetic transcription is /mɔːr ˈbəʊldəri/. The suffix "-ed" is commonly used to form the past tense of verbs or adjectives. However, in this case, "bouldery" is already an adjective that describes something full of boulders. The word "more" serves as an intensifier, indicating a greater degree of rockiness. It is important to use accurate spelling and phonetic transcription to ensure clear communication in written and spoken language.