Synonyms for Missing link:

• n.

  •
  • absentee,
  • void.
  •
  • caveman,
  • carboniferous,
  • ammonite,
  • era,
  • the Cretaceous,
  • fossil,
  • fossilize,
  • Cro-Magnon man,
  • the Dreamtime,
  • fossilized.
  •ape-man (noun)
  • ape-man.
  •connection (noun)
  • needed part,
  • pertinent evidence,
  • necessary part,
  • link,
  • hominid.
  •lost connection (noun)
  • omission,
  • protohuman,
  • broken thread,
  • prehuman.

• Other synonyms:

  •
  • gap,
  • missing person,
  • no-show,
  • vacuum.
  •Other relevant words:
  • bushman,
  • antediluvian,
  • hominidae,
  • deficiency,
  • defalcation,
  • humanoid,
  • aboriginal,
  • aborigine,
  • anthropoid,
  • cave dweller,
  • defect,
  • transitional fossil,
  • discontinuity,
  • Autochthon,
  • deficit,
  • hiatus,
  • lacuna,
  • outage,
  • ancient,
  • break,
  • shortage,
  • troglodyte,
  • Preadamite,
  • lack,
  • ullage,
  • primate,
  • Arrearage,
  • need,
  • want,
  • Wantage,
  • oaf,
  • monster,
  • anthropoid ape,
  • interval.