dubitable
Concise Oxford English Dictionary © 2008 Oxford University Press:
dubitable /ˈdjuːbɪtəb(ə)l/
▶adjective rare open to doubt.
– derivatives
dubitability noun.
dubitability noun.
– origin C17: from L. dubitabilis, from dubitare ‘to doubt’.
'dubitable' also found in these Oxford entries:

