decline
/di-ˈklīn/
verb
to become less in amount
to tend toward an inferior state or weaker condition
to withhold consent
The price of the stock declined.
noun
the process of declining:
a gradual physical or mental sinking and wasting away
a change to a lower state or level
experiencing a mental decline
deterioration degeneration decadence decline mean the falling from a higher to a lower level in quality, character, or vitality. deterioration implies generally the impairment of value or usefulness. degeneration stresses physical, intellectual, or especially moral retrogression.
idiom
to become less powerful, wealthy, etc.
There was a general feeling that the country was in decline.