noun
a great variety of; all sorts of; diverse
Emphasizes a wide and diverse range of types or kinds. Often used in formal or written contexts.
この店には種々様々な商品が並んでいる。
This shop has a great variety of products on display.
種々様々な意見が出された。
A wide variety of opinions were expressed.
様々 is a common word for 'various', while 種々様々 is more emphatic and formal, stressing a wide diversity.
色々 is a casual, everyday word for 'various'. 種々様々 is more literary and stronger in tone.
Compound of 種々 (shuju, 'various kinds') and 様々 (samazama, 'various'), both reduplicative words emphasizing diversity.