knockdown

1 : having such force as to strike down or overwhelm a bewildering assortment of knockdown arguments— J. W. Krutch

2 : that can easily be assembled or disassembled a knockdown table

3 chiefly British : extremely low : reduced knockdown prices

1 : the action of knocking down

2 : something (such as a blow) that strikes down or overwhelms

3 : something (such as a piece of furniture) that can be easily assembled or disassembled

1 : to strike to the ground with or as if with a sharp blow : fell

2 : to dispose of (an item) to a bidder at an auction sale

3 : to take apart : disassemble

4 : to receive as income or salary : earn positions where they were able to knock down good money — Infantry Journal

5 : reduce knocked the price down

6 basketball, informal : to succeed in making (a jump shot or foul shot) She scored 10 points on the night with three assists. She also knocked down three out of four free-throw attempts.— Niki Herbert Pierce faked right, drove left, turned and knocked down a fadeaway jumper.— Jason Mastrodonato