over-dependence
They claim that people are becoming over-dependent on state aid.
Mining communities were almost always over-dependent on the mine for their livelihood.
Is he over-dependent on his friendship with her?
Overdependent relationships are no good for anyone.

SMART Vocabulary: related words and phrases

Being based on or depending on something
-based
as the case may bephrase
base something on something
bases
basis
dependently
divine right
entail
footing
found
ground
rest with someone
result from something
ride
ride on something/someone
rooted
spring from something
strength
understanding
wake

You can also find related words, phrases, and synonyms in the topics:

Essential or necessary
Addiction