How do I best translate the interjection "Entertaining!"?
'This event is entertaining'
'這個活動很富娛樂性'

'Entertaining' in this context is an adjective, which is translated as '富娛樂性(的)/有娛樂性(的)'in Chinese.

[entertaining] = [富娛樂性]

[entertaining + noun] = [富娛樂性(的) + noun]


'Entertaining event' is '富娛樂性的活動/節目'
'Enjoyable event' is  '讓人享受的活動/節目'
'Fun event' is '有趣的活動/節目'
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Edition:
Patrick Dark wrote:

I changed my text to &quot;娛樂性!&quot;. &quot;富&quot; would seem to be unnecessary since that's implied by use of an exclamation mark.

No, 富  or 有  is necessary in this context
娛樂性 means

(adj) ' of entertainment'

Example: 這是一個娛樂性活動 (this is an event of entertainment / this is an entertainment event)

(n)  'entertaining element'

Example: 這個活動的娛樂性不高 (this event's entertainment element is not high)
富/有娛樂性(的) literally means &quot;~ that have entertainment element&quot;. It is used as an adjectival phrase in a whole. Equal to 'entertaining'(adj) in English.
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