n.extraordinariness by virtue of being unexpected

"the unexpectedness of the warm welcome"

同義詞：surprisingness

Unexpectedness
Unexpectedness as a measure of interestingness in knowledge discovery
On Unexpectedness in Recommender Systems: Or How to Better Expect the Unexpected
Knowledge discovery interestingness measures based on unexpectedness
Frontal theta reflects uncertainty and unexpectedness during exploration and exploitation.
Understanding Narrative Interest: Some Evidence on the Role of Unexpectedness
Independent manipulation of stimulus change and unexpectedness dissociates indices of the orienting response
Proposal and Evaluation of Serendipitous Recommendation Method Using General Unexpectedness
Interestingness of Discovered Association Rules in Terms of Neighborhood-Based Unexpectedness
Functional heterogeneity of conflict, error, task-switching, and unexpectedness effects within medial prefrontal cortex