Undiagnosable
Word Structure
WordHub has a local lexical record for “Undiagnosable” with pronunciation and root analysis.
un-
not
Forms: un
dia-
across, through, between
Forms: dia
gnos
know, learn, discern
Forms: gno, gnom, gnor, gnos, gnost, gnot
-able
that can be ~ed; able to be ~ed
Forms: able, ible