This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

Same as ideational.

"In the seventeenth and eighteenth centuries, mathe - matics was so fascinated with its newly developing raw operational skills, that, in its ebullience, it hid from itself the necessity of attending to some basic con - ceptual (ideative) subtleties, mostly involving infinity, the discovery and pursuit of which had been a hallmark of the mathematics of the Greeks."