1
indistinct
1
infrared
1
invisibleness
1
irrecoverable(confused, out, hidden, lost, unchangeable)
1
irretrievable(confused, out, hidden, lost, bewildered)
1
irrevocable(confused, out, hidden, lost, unchangeable)
1
kiss goodbye(expression, out, hidden, lost, missing)
1
lacking(confused, out, hidden, lost, unchangeable)
1
legendary(obscure, dark, superior, mysterious, supernatural)
1
lightless
1
little-known
1
microcosmic
1
minor
1
minus(confused, out, hidden, lost, unchangeable)
1
miraculous(obscure, dark, superior, mysterious, supernatural)
1
mislaid(confused, out, hidden, lost, unchangeable)
1
misplaced(confused, out, hidden, lost, unchangeable)
1
missed(confused, out, hidden, lost, unchangeable)
1
missing(confused, out, hidden, lost, unchangeable)
1
mist
10 years ago|20k views|share |citing 
APASmart Define. (2015). invisible thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/invisible/thesaurus/synonyms
ChicagoSmart Define. 2015. "invisible thesaurus" https://smartdefine.org/invisible/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, invisible thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/invisible/thesaurus/synonyms>.
MLASmart Define. "invisible thesaurus" 7 December 2015. Web. 24 September 2026. <https://smartdefine.org/invisible/thesaurus/synonyms>