The term 'UNCOSTLY' is an adjective that describes something that is LOW in cost or INEXPENSIVE. It can be broken down into three words: LOW (3 letters), CHEAP (5 letters), and INEXPENSIVE (11 letters). All three words mean the same thing, but they are used in different contexts. LOW implies a lower price than usual, while CHEAP implies a lower quality than usual. INEXPENSIVE implies a lower cost than expected. All three words can be used to describe something that is un-costly.