Noun which may take the genitive case particle 'no', Taru adjective, Adverb taking the 'to' particle
outspoken; arguing (heatedly) what one believes in; insisting on something without restraint
Yojijukugo (four character compound)
国会は、盗聴法案を巡ってまさに侃々諤々の体であった。Parliament members had a raucous argument over the Wiretapping Law.
Also written 侃侃諤諤【かんかんがくがく】