Antonyms of verb materialise

1 sense of materialise

Sense 1
happen, materialize, materialise -- (come into being; become reality; "Her dream really materialized")
       Antonym of dematerialise (Sense 1)
      => dematerialize, dematerialise -- (become immaterial; disappear)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb materialise

1 sense of materialise

Sense 1
happen, materialize, materialise -- (come into being; become reality; "Her dream really materialized")
       => happen, hap, go on, pass off, occur, pass, fall out, come about, take place -- (come to pass; "What is happening?"; "The meeting took place off without an incidence"; "Nothing occurred that seemed important")