different between dispirited vs lacklustre

English

dispirited

dispirited (comparative more dispirited, superlative most dispirited)

Without energy, gusto or drive, enervated, without the will to accomplish, disheartened.
So dispirited were the troops after the loss of their beloved commander that they moped about and could barely be bothered to eat let alone load their guns.

lack +? lustre

lacklustre (comparative more lacklustre, superlative most lacklustre)

lacklustre (countable and uncountable, plural lacklustres)

(British) Alternative spelling of lackluster
- 1990, The Nigerian Economist (volume 4, page lxxii)
  Secondly, the fear of offending the military has reduced the campaigns to mere lacklustres. Promises are reeled off with so much obvious lack of passion that it is quite possible the party bosses themselves hardly believe what they say […]

Send