"debatable" in the adjective sense
1. debatable, problematic, problematical
open to doubt or debate
"If you ever get married, which seems to be extremely problematic"
2. arguable, debatable, disputable, moot
open to argument or debate
"that is a moot question"
3. debatable, disputable
capable of being disproved
Source: WordNet® (An amazing lexical database of English)
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