smooth

having a surface free from roughness or bumps or ridges or irregularities

• “smooth skin”
• “a smooth tabletop”
• “smooth fabric”
• “a smooth road”
• “water as smooth as a mirror”

smoothly agreeable and courteous with a degree of sophistication

• “he was too politic to quarrel with so important a personage”
• “the hostess averted a confrontation between two guests with a diplomatic change of subject”
• “the manager pacified the customer with a smooth apology for the error”
• “affable, suave, moderate men...smugly convinced of their respectability” Ezra Pound

of the margin of a leaf shape; not broken up into teeth

not marked with wrinkles

• “unwrinkled cheeks”

smooth and unconstrained in movement

• “a long, smooth stride”
• “the fluid motion of a cat”
• “the liquid grace of a ballerina”
• “liquid prose”

without breaks between notes; smooth and connected

• “a legato passage”

without chinks or crannies

lacking obstructions or difficulties

• “the bill”

make smooth or smoother, as if by rubbing

• “smooth the surface of the wood”

(of surfaces) make shine

• “shine the silver, please”
• “polish my shoes”

free from obstructions

• “smooth the way towards peace negociations”

the act of smoothing

• “he gave his hair a quick smooth”