unfilled
1. [ adjective ] not filled
Examples:

"an unfilled bottle" "unfilled spaces"

Related terms: empty
Similar spelling:   unfiled
  unfulfilled
  unveiled
  unfilmed
  unfelled
  unpolluted
  unpillared
  unfueled
  univalent
  unveil
  unpledged
  unfledged
  unable
  unifoliate
  unifilar