having or showing interest; especially curiosity or fascination or concern
An interested audience. Interested in sports. Was interested to hear about her family. Interested in knowing who was on the telephone. Interested spectators.
source: WordNet 3.0
Having the attention engaged; having emotion or passion excited; as, an interested listener.
source: Webster 1913
adjective satellite
involved in or affected by or having a claim to or share in
A memorandum to those concerned. An enterprise in which three men are concerned. Factors concerned in the rise and fall of epidemics. The interested parties met to discuss the business.
