valetudinarian n weak or sickly person especially one morbidly concerned with his or her health a of or relating to or characteristic of a person who is a valetudinarian Usage(s) With the air of an unwilling valetudinarian, Michigan's handsome, boot-jawed Governor Kim Sigler got up to speak before the Economics Club of Detroit. Other countries should be put on notice that Britain is nobody's poor relation and nobody's valetudinarian cousin. THE NERVOUS WRECKSlapstick rattling against the ribs of the determined valetudinarian. Synonym(s) valetudinary