Difference between Doldrums and Stagnation

DOLDRUMS vs STAGNATION: NOUN

A belt of calms and light winds between the northern and southern trade winds of the Atlantic and Pacific
A state of inactivity (in business or art etc)

A state of inactivity (in business or art etc)
Inactivity of liquids; being stagnant; standing still; without current or circulation
The condition of being stagnant; the cessation of flow or circulation in a fluid; the state of being without flow, or of being motionless.
Lack or absence of briskness or activity; inertness; dullness.
The condition of being stagnant; cessation of flowing or circulation, as of a fluid; the state of being motionless.
The cessation of action, or of brisk action; the state of being dull.
Inactivity
Being stagnant; being without circulation

Low spirits; the dumps: as, he is in the doldrums.
Nautical, certain parts of the ocean near the equator that a bound in calms, squalls, and light baffling winds; also, the calms or variations of weather characteristic of those parts.
(noun plural) to be in a state of listlessness ennui, or tedium.
(noun plural) A part of the ocean near the equator, abounding in calms, squalls, and light, baffling winds, which sometimes prevent all progress for weeks; -- so called by sailors.
(noun plural) The weather conditions characteristic of these regions of the ocean.
(noun plural) A region of the ocean near the equator, characterized by calms, light winds, or squalls.
(noun plural) A period of depression or unhappy listlessness.
(noun plural) A period of stagnation or slump.

Plights, King, Hardships, Depression, Difficulties, Predicaments, Morass, Slowdown, Sluggishness, Downturn, Recession, Slump, The doldrums, Stagnancy, Stagnation

Apathy, Immobility, Slump, Gridlock, Stalemate, Downturn, Paralysis, Inertia, Decline, Recession, Slowdown, Sluggishness, Stasis, Doldrums, Stagnancy

Gloom, Torpor, Rut, Malaise, King, Depression, Difficulties, Morass, Slowdown, Sluggishness, Downturn, Recession, Slump, Stagnancy, Stagnation

Rut, Quagmire, Morass, Apathy, Immobility, Slump, Gridlock, Downturn, Paralysis, Decline, Recession, Slowdown, Sluggishness, Doldrums, Stagnancy

Accenture, Success or stagnation in the communications industry?
Trn reiterates the idea that stagnation is death.
With Bible study, information without application is stagnation.
Heavily stocked standsmust be thinned before stagnation occurs.
This kept the game fluid and prevented stagnation.
Isolation and stagnation are things that kill us.
Acrimony in the Ivory Tower: Stagnation or Evolution?
If the employee is eligibility for stagnation pay the report grants stagnation increment to the employee.
The free circulation of water, without any stagnation or sediment deposit, minimises the chances of pollution due to stagnation.
Throughout the world's financial pages, economists have adopted a new noun: stagnation, stagnation and stagnation.