Synonyms of insoluble in English:

insoluble


See definition of insoluble

adjective

1‘we must face the fact that some problems are insoluble’

SYNONYMS

unsolvable, insolvable, unable to be solved, without a solution, unanswerable, unresolvable

unfathomable, impenetrable, unexplainable, inscrutable

baffling, puzzling, perplexing, enigmatic, obscure, mystifying, mysterious, inexplicable

2‘these minerals are relatively insoluble’

SYNONYMS

not soluble, indissoluble, incapable of dissolving