noun
Rapidity
Undue rapidity
Urgency
haste implies quick or precipitate movement or action, as from the pressure of circumstances or intense eagerness; hurry, often interchangeable with haste, specifically suggests excitement, bustle, or confusion the hurry of city life; speed implies rapidity of movement, operation, etc., of persons or things, suggesting effectiveness and the absence of excitement or confusion to increase the speed of an assembly line; expedition adds to speed the implication of efficiency and stresses the facilitation of an action or procedure; dispatch comes close to expedition in meaning but more strongly stresses promptness in finishing something completed the report with dispatch
See haste in American Heritage Dictionary 4 Synonyms
See haste in Webster's New World Roget's A-Z Thesaurus II
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