The best replacement for vector is raster.

The best alternatives to vector are rated as following:
★★★★★  raster
★★★★  bitmap
★★★★  scalar
★★★  arraylist
★★★  array
★★  list
★★  pixel
★  raster images
★  plasmid
★  raster graphics
★  link state
★  eps file
  raster data
  matrix
  cross product
  reservoir
  arraylist java
  raster gis
  mtar
  list java
  kaliyo
  deque
  linked list
  mtar ghosts
  biological vector
  k7
  host
  adt
  casio pathfinder
  eps
  fomite
  ray
  list c++
  scalar quantities
  vehicle
  scalar quantity
  expression vector
  link state routing
  array c++
  phasor
  hashtable
  ump
  cutco
  suunto core
  bitmap graphics

Your alternative for vector is not listed? Suggest!
Speaking about vector, one probably shouldn't forget about magnitude and direction.

Other search terms related to vector and their ratings are:
★★★★★ magnitude and direction
★★ struct c++
★ objects c++
initial and terminal points
You have in mind a companion for vector and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of vector in all years. Click on graph for more.
vector
raster
bitmap