As verbs the difference between overcrowed and overcrowded
is that overcrowed is past tense of overcrow while overcrowded is past tense of overcrowd.
As an adjective overcrowded is
containing too many occupants for an area of its size.
overcrowed
English
Verb
(head)
(overcrow) overcrow
English
Verb
(
en verb)
(obsolete) To take over.
*1602 : , act V scene 2
*:The potent poison quite overcrows my spirit
(obsolete) To crow over, as in triumph.
overcrowded
English
Verb
(head)
(overcrowd)
Adjective
(
en adjective)
Containing too many occupants for an area of its size.