This word is not acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. The state of being opiniative; undue stiffness in opinion.

"Mr. Direck had read a very great deal of all this expressed opiniativeness of Mr. Britling: he found it entertaining and stimulating stuff, and it was with genuine enthusiasm that he had come over to encounter the man himself."