The antonym for "more contemplated" is "less considered". When we say that something has been "contemplated", it means that it has been carefully thought through, considered, and analyzed. However, when we say that something has been "less considered", it implies that less thought has gone into it. This can mean that a decision has been made hastily, without enough information or deliberation. When making important decisions, it's important to take the time to properly contemplate all the options, weigh the pros and cons, and consider any potential consequences. Only then can we make informed and thoughtful choices that will result in the best outcomes.