UNSOUND, UNSOUNDNESS
ADJECTIVES
► ADDLE unsound, crazy → 1847 Eng. dial.
► CRONK unsound, liable to collapse, unfit → 1900 Aust.
► CRONKY unsound, second-rate → 1920s sl.
► DICKEY ► DICKY unsound, shaky; in bad condition; of a low or inferior quality → 1819
► UP THE WOP unsound, broken → 2001 NZ sl.
► WONKY unsound or unreliable → 1925 UK sl.
NOUNS
► CRACK 1. a flaw, deficiency, failing, unsoundness → 1570
2. a craze, unsoundness of mind → 1601
► CRACKEDNESS craziness, unsoundness of mind → 1910