Furtive means done quietly and secretly, as if guilty. A furtive glance.
The guilt is the point, since something merely quiet is not furtive. A furtive movement is what a witness remembers when they can remember nothing else.
1adjectivefurtiveDone quietly and secretly, as if guilty.
“The furtive look at the door gave him away.”
furtive is a quality.
Latin fūrtīvus, stolen, from fūr, a thief. A furtive glance is a look taken without permission.
Proto-Indo-European
*bʰer- — to bear, carry
Latin
fūrtīvus — clandestine, furtive, secret; concealed, hidden; stolen
Middle French
furtif
Middle English
*furtyve
English, today
furtive
Built from
From Middle English furtyve (implied in furtyvely), from Middle French furtif, furtive (“furtive, stealthy”) (modern French furtif), from Latin fūrtīvus (“clandestine, furtive, secret; concealed, hidden; stolen”), from fūrtum (“theft; robbery”) (from fūr (“thief”), ultimately from Proto-Indo-European bʰer- (“to bear, carry”)) + -īvus.
Etymology from Wiktionary, CC BY-SA