Meaning of brick wall | Babel Free

Definitions

1. Used other than figuratively or idiomatically: see brick, wall. A wall made of bricks.
2. An obstacle.
   figuratively
3. A type of anti-aliasing filter with a steep cutoff.
4. Someone who is silent or unresponsive.
   figuratively

Equivalents

Examples

“The investigators came up against a brick wall in their search for the missing money when they discovered it had been transferred overseas.”

“They all ran up against the brick wall of high cost until the cryogenic option was proven feasible in 1973.”

“One of the first problems with the digital audio process is the use of brick wall filters with very steep slopes for anti-aliasing and anti-imaging purposes.”

“To reconstruct the sampled signal, an ideal brick wall filter is demanded to remove the output of band signal.”

“For example, a first order filter can be converted to a brick wall filter by multiplying by the brick wall factor 1.57.”

“When mama says she doesn't talk, she means it. She's a brick wall.”

“"Does he talk much? I mean, does he initiate conversation?" "No. He's a brick wall," I said.”

“Having uttered these benign assurances, Mr Burner III became a brick wall.”

CEFR level