Exact historical dictionary sense
Stupid in Webster's 1913 dictionary
The 1913 record labels stupid as adjective. Its source-bounded etymology and selected historical definition appear below.
[L. stupidus, fr. stupere to be stupefied: cf. F. stupide.]
Cross-verified historical senseIn Webster's Revised Unabridged Dictionary (1913), "stupid" is labeled adjective. Its etymology is recorded as: "[L. stupidus, fr. stupere to be stupefied: cf. F. stupide.]" The selected historical definition says: "Very dull; insensible; senseless; wanting in understanding; heavy; sluggish; in a state of stupor; -- said of persons."