"Hundred per cent" is often used to describe something that is completely true or accurate. However, there are many synonyms that can be used in its place. Words like "completely," "entirely," "wholly," "fully," and "utterly" convey the same sense of total commitment or agreement. Other synonyms for "hundred per cent" include "absolutely," "positively," "unequivocally," and "unquestionably." As with any synonym, the choice of word will depend on the context and the associated connotations. Still, these alternatives provide a useful vocabulary for anyone who wants to express complete conviction or certainty.