Splendour is a related term of impressiveness.
As nouns the difference between splendour and impressiveness
is that splendour is while impressiveness is the quality of being impressive.
splendour
English
Noun
(-)
Usage notes
The standard spelling in modern British English is splendour', with ' splendor being the American and dated British spelling.
impressiveness
English
Noun
(-)
The quality of being impressive.
References
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Anagrams
* permissiveness