1.Definition: characteristic of spectacles or drama

"Spectacular dives from the cliff"

2.Definition: having a quality that thrusts itself into attention

"A spectacular rise in prices"

Related Adjective(s):outstanding, prominent, salient, striking

3.Definition: sensational in appearance or thrilling in effect

"A spectacular display of northern lights", "It was a spectacular play"

Related Adjective(s):dramatic, striking