INVALID


Meaning of INVALID in English

n. Function: adjective

1

Synonyms: ILLOGICAL , fallacious, irrational, mad, nonrational, reasonless, sophistic, unreasonable, unreasoned

Antonyms: valid

2

Synonyms: NULL , bad, null and void, void

Merriam Webster. Collegiate thesaurus English dictionary.      Английский энциклопедический толковый словарь тезауруса.