In a way that is unclear or can be understood in multiple ways; with ambiguity or uncertainty.
From ambiguous + -ly. The adjective ambiguous derives from Latin ambiguus, and -ly converts it to an adverb describing how something is said or done.
The phrase 'ambiguously phrased' is common in legal disputes—judges actually get angry at ambiguously written contracts because the ambiguity then becomes expensive to resolve in court.
Complete word intelligence in one call. Free tier — 50 lookups/day.