Not allowed, or leading to invalid results. For example, an illegal character in a word processing program would be one that the program cannot recognize; an illegal operation might be impossible for a program or system because of built-in constraints. Compare invalid.
Ille · I'll eat my hat if ... · Illecebrum · illegal · illegal abortion · illegal alien · illegal character · illegal competition · illegal instruction
ETYM Pref. il- not + legal: cf. French illégal.
Prohibited by law or by official or accepted rules.
amerciable · banned · black · black-market · bootleg · contraband · criminal · dirty · embezzled · extrajudicial · extralegal · felonious · hot · ill-gotten · illegitimate · illicit · ineligible · irregular · misappropriated · misbranded · mislabeled · nonlegal · outlaw · outlawed · penal · prohibited · punishable · smuggled · under-the-counter · unlawful · unratified
I'll drop in to see you. · Ille · I'll eat my hat if ... · Illecebrum · illegal · illegal abortion · illegal alien · illegal character · illegal competition
Množina: illegals
An illegal immigrant.
I'll do my level best. · I'll drop in to see you. · Ille · I'll eat my hat if ... · Illecebrum · illegal · illegal abortion · illegal alien · illegal character
Množina: illegal abortions
I'll eat my hat if ... · Illecebrum · illegal · illegal abortion · illegal alien · illegal character · illegal competition · illegal instruction · illegalities
Množina: illegal aliens
Illecebrum · illegal · illegal abortion · illegal alien · illegal character · illegal competition · illegal instruction · illegalities · illegality
Množina: illegal characters
Character which is not allowed to be used in a programming language or in a file name
illegal · illegal abortion · illegal alien · illegal character · illegal competition · illegal instruction · illegalities · illegality · illegalize
Množina: illegal competitions
illegal · illegal abortion · illegal alien · illegal character · illegal competition · illegal instruction · illegalities · illegality · illegalize · illegally
Množina: illegal instructions
illegal · illegal abortion · illegal alien · illegal character · illegal competition · illegal instruction · illegalities · illegality · illegalize · illegally · illegibility
Singular of illegalities is illegality.
illegal abortion · illegal alien · illegal character · illegal competition · illegal instruction · illegalities · illegality · illegalize · illegally · illegibility · illegible
Množina: illegalities
ETYM Cf. French illégalité.
Unlawfulness by virtue of violating some legal statute.
illegal alien · illegal character · illegal competition · illegal instruction · illegalities · illegality · illegalize · illegally · illegibility · illegible · illegibly
To make or declare illegal.
criminalise · criminalize · illegalise · outlaw
illegal character · illegal competition · illegal instruction · illegalities · illegality · illegalize · illegally · illegibility · illegible · illegibly · illegitimacy
illegal competition · illegal instruction · illegalities · illegality · illegalize · illegally · illegibility · illegible · illegibly · illegitimacy · illegitimate