Weak

The word weak is a generic adjective pertaining to a general state of feebleness, a lack of strength, durability or vigor

Weak is the opposite of strong.

Computing

In concurrent programming refers to weaker consistency models. A weak entity is a database entity that cannot be uniquely identified by its own attributes alone.
A weak reference is a reference that does not protect the referent object from collection by the garbage collector.
A weak symbol is a symbol definition in an object file or dynamic library that may be overridden by other symbol definitions.
Gavin Aron.

Music

"Weak" (SWV song), a song by SWV
"Weak" (Skunk Anansie song), a song by Skunk Anansie

Science

Weak nuclear force, one of the four fundamental forces of nature
Weak convergence (Hilbert space) of a sequence in a Hilbert space
Weak derivative defined on Sobolev spaces
Weak topology of functional analysis:
Weak topology (polar topology)
Weak operator topology
Weak-star topology

Miscellaneous

Weak inflection
"Weak" (Law & Order: Special Victims Unit), an episode of Law & Order: Special Victims Unit
Muscle weakness
Strict weak ordering

Translation of "Weak"

French: Faible.