1. In a furtive manner
   "the soldiers were furtively crawling through the night"
   - on the sly

See also: furtive

Encyclopedia: Furtively

• rub out
• rub up
• rub-a-dub
• rubai
• rubato
• rubber
• rubber band
• rubber boa
• rubber boot
• rubber bullet
• rubber cement
• rubber check
• rubber cheque
• rubber eraser
• rubber plant
• rubber tire
• rubber tree
• rubber tyre
• rubber-base paint
• rubber-necking
• rubberise
• rubberize
• rubberlike
• rubberneck
• rubbernecker