arguable
Thesaurus: synonyms, antonyms, and examples used to say you are not certain
maybe"Do you want to go to the show tonight?" "Maybe. Let's see how I feel after work."
perhapsPerhaps he'll decide to join us tonight.
possiblyThere are four, possibly five people who have been injured in the explosion.
potentiallyThese potentially unsafe chemicals are present in our groundwater.
conceivablyIt would be hard, but a burglar could conceivably shut down your electronic alarm system by hacking into it.
plausiblyShe argued, rather plausibly, that her neighbour was the one who took the tools from her allotment.