1) Affordable 2) Bargain basement 3) Catchpenny 4) Cheap 5) Low-cost 6) Low end 7) Low price 8) Low-priced 9) Sixpenny 10) Tuppeny 11) Twopenny 12) Unexpensive 1) Affordable 2) Bargain-priced 3) Catchpenny 4) Cheap 5) Cheap to run 6) Cost-effective 7) Costing little 8) Cut-price 9) Cut-rate 10) Dirt cheap 11) Discounted 12) Easy on the pocket 13) Economical 14) Efficient 15) Having a low price; cheap 16) Low-budget 17) Low-cost 18) Low-priced 19) Not expensive 
• (a.) Not expensive; cheap.
In`ex·pen'sive adjective Not expensive; cheap. 
not expensive; not high in price; costing little.