The phrase "hadst in mind" refers to the act of having a particular idea or thought in one's mind. The opposite of having something in mind would be to not have any particular idea in mind or to be completely blank. Synonyms for "hadst in mind" could include "considering," "contemplating," or "thinking about." Antonyms for this phrase could include "unaware," "indifferent," "disinterested," or "ignorant." When someone says they don't have something in mind, they could also say "not considering," "not contemplating," or "not thinking about." Understanding antonyms and synonyms can help individuals expand their vocabulary and better communicate their thoughts and ideas.