The spelling of the word "haddest capacity for" can be confusing to those unfamiliar with it. In IPA phonetic transcription, the word is pronounced /ˈhædɪst kəˈpæsɪti fɔr/. "Haddest" is the archaic second-person singular form of "have" in the past tense. "Capacity" is spelled with a "c" and "p" rather than "s" and "t" as some may expect. "For" is a standard spelling, but it can be pronounced with the vowel sound /ʊ/ or /ɔr/ depending on dialect or context.