Antonyms for the phrase "for intents and purposes" include "inconclusively," "indefinitely," "incompletely," "uncertainly," and "tentatively." These words indicate an absence of clarity or a lack of certainty. They suggest that something is unfinished or unresolved, and that there are still doubts or unanswered questions. If something is "inconclusive," for example, it means that it has not led to a definitive resolution or decision. Similarly, if something is "indefinite," it means that there is no clear or exact conclusion, while "uncertain" suggests doubts or hesitations. In contrast to "for intents and purposes," these antonyms highlight the uncertainty of a situation, rather than its practical or functional aspects.