Senseless in a new world (5)

I believe the answer is:

inane

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'senseless' is the definition.
(I've seen this before)

'in a new world' is the wordplay.
'a new world' becomes 'ane' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'in'+'ane'='INANE'

Can you help me to learn more?

(Other definitions for inane that I've seen before include "unimaginative" , "Absurd" , "Vacuous, silly" , "Moronic" , "Lacking meaning" .)

I've seen this clue in the Sydney Morning Herald.

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