From dialectal gawmsensefrom Middle English gomenoticefrom Old Norse gaumr
American Heritage Dictionary of the English Language, 5th Edition
From English dialectal gaum (“understanding”) + -less (“without”), ultimately from Proto-Germanic*gaumaz, *gaumō (“understand”). The ‘r’ found in this spelling is a vowel-lengthening device common in non-rhotic dialects of English.
Gormless Sentence Examples
Julie Kent tried to be sweet and innocent but succeeded only in looking gormless.
Not so for DJ Sam Seed, who played his set of fabulous full-on funky hip-hop under a barrage of some stunningly gormless heckling.
Are you all so gormless you canted even spot an open goal like that!