Is that so? It seems most scholars restrict the term "mountaineering" to climbing or trekking on hills. What else can you tell me about mountaineering?
for most scholars it is climbing and trekking. Unless maybe indoor climbing and trekking as you are saying
Going Mountaineering for a breath of fresh air. Oh, that's nice. So you like climbing mountains? Yes, although it can also be done indoors. It has broad definitions and alot of activities can be accorded to it, some scholars identify mountaineering-related activities as climbing (rock and ice) and trekking up mountains, others are also adding backpacking, hiking, skiing etc yes, that's correct. its best for physically agile people.
However most of the scholars, the term mountaineering understand as a climbing (which now refers to adventure climbing or sports climbing) and trekking (hill walking in 'exotic' places).