Synonyms for Parsimony (same or very similar meaning)
WordNet sense 1 (extreme care in spending money; reluctance to spend money unnecessarily):
penny-pinching, thrift, parsimoniousnessWordNet sense 2 (extreme stinginess):
closeness, meanness, niggardliness, tightness, minginess, niggardness, tightfistednessFrom the ODE community, based on WordNetadd/edit