adjective
Etymology: French, from Latin colossus + French -al — more at colossus
1. : like or relating to a colossus : of very great size
a colossal statue
2. : characterized by extremely great bulk, extent, force, strength, power, or effect, approaching or suggesting the stupendous or incredible
the colossal speed of 15,000 miles a second — James Jeans
their wars have now become so colossal that every woman's husband, father, son, brother, or sweetheart … must go to the trenches — G.B.Shaw
3. : characterized by an exceptional or astonishing degree
colossal impudence
Synonyms: see huge