Word:

  compactly

1. compactly (r)
  taking up no more space than necessary. "liquid food compactly stored in a pressurized tank".

2. compactly (r)
  with concise and precise brevity. "he wrote compactly but clearly".

3. compactly (r)
  in a compact manner or state. "The children were packed compactly into the car".

Derived from adjective
compactcompact

Pertainym (pertains to noun)
compactcompact