[{"Bold_text": "noun", "List Items": ["an infirm or sickly person.", "a person who is too sick or weak to take care of their own needs:My father was an invalid the last ten years of his life.", "Archaic.a member of the armed forces disabled for active service."]}, {"Bold_text": "adjective", "List Items": ["unable to care for oneself due to infirmity or disability:his invalid sister.", "of or for invalids:invalid diets.", "(of things) in poor or weakened condition:the invalid state of his rocking chair."]}, {"Bold_text": "verb (used with object)", "List Items": ["to affect with disease; make an invalid:He was invalided for life.", "to remove from or classify as not able to perform active service, as an invalid.", "British.to remove or evacuate (military personnel) from an active theater of operations because of injury or illness."]}, {"Bold_text": "verb (used without object)", "List Items": ["to become an invalid."]}, {"Bold_text": "adjective", "List Items": ["not valid; not founded in truth, fact, or logic, and hence weak and indefensible; unsound; untenable:The entire argument depends on an invalid assumption.Synonyms: incorrect , inaccurate , false , erroneous , unsubstantiated , unfounded , groundless , baseless", "deficient in effectiveness; inadequate:Self-perception is an invalid method of judging one's own biases.", "void or without legal force, as a contract:Without the grandfather clause, thousands of such warranties would now be invalid. The coupon is invalid in our state.Synonyms: null and void null and void", "not accepted or permitted because a required element or the necessary form is lacking; not usable:Anything with fewer than five characters is an invalid password, and you’ll get an error message prompting you to pick something more secure."]}]