Something that is factual is concerned with facts or contains facts, rather than giving theories or personal interpretations.
例句
The editorial contained several factual errors...社論里有幾處事實性錯誤。Any comparison that is not strictly factual runs the risk of being interpreted as subjective.任何不完全切合實際的比較都有可能被當作主觀臆斷。
英英詞典釋義
Adverb
1. as a fact or based on fact;
"they learn much, factually, about the problems of retirement and provision for old age, and, psychologically, in the sharing of their thoughts on retirement"