Substandard 

When you lose a soldier of the month board to somebody who you outrank, commonly uses slang and shortened words

PFC Lamb became substandard when he lost the soldier of the month board to PV2 Bitz in May of 2011

Substandard by best-in-the-great-place April 27, 2011

substandard 

Less-than-satisfactory bass-output of your separately-amplified table-style woofer.

If you develop hearing-loss from playing your "music" (i.e., it's debatable whether that horrible crash-'n'-bash thumpy-thump cacophony truly qualifies as actual music!) too loud, then ANY audio-system will likely sound substandard to you.

substandard by QuacksO October 12, 2023

Sub standard stand in 

Some imposter look alike, faking their way thru life, pretending to be somebody on the east coast.

Paige, your guest is a sub standard stand in.

Sub standard stand in by ApolloX*12 August 20, 2024