economical

adjective

1. 1

   using the minimum of time or resources necessary for effectiveness

   an economic use of home heating oil

   a modern economical heating system

2. 2

   avoiding waste

   an economical meal

   an economical shopper

3. 3

   of or relating to an economy, the system of production and management of material wealth

   economic growth

   aspects of social, political, and economical life