A texture without roughness; smooth to the touch.

Roget 332: smoothness etc. 255; unctuousness etc. 355.    lubrication, lubrification^†; anointment; oiling etc. v.. synovia [Anat.]; glycerine, oil, lubricating oil, grease etc. 356; saliva; lather.    teflon.    ... show more

Roget 705: facility, ease; easiness etc. adj.; capability; feasibility etc. (practicability) 470; flexibility, pliancy etc. 324; smoothness etc. 255.    plain sailing, smooth sailing, straight sailing; mere child's play, holiday task; cinch [U.S.].    smooth water, fair wind; smooth royal road; clear coast, clear stage; tabula rasa [Lat.]; full play etc. (freedom) 748.    disencumbrance^†, disentanglement; deoppilation^†; permission etc. 760.    simplicity, lack of complication.    ... show more

Roget 251: flatness etc. adj.; smoothness etc. 255.    plane; level etc. 213; plate, platter, table, tablet, slab.    ... show more

Roget 255: smoothness etc. adj.; polish, gloss; lubricity, lubrication.    [smooth materials] down, velvet, velure, silk, satin; velveteen, velour, velours, velumen^†; glass, ice.    slide; bowling green etc. (level) 213; asphalt, wood pavement, flagstone, flags.    [objects used to smooth other objects] roller, steam roller, lawn roller, rolling pin, rolling mill; sand paper, emery paper, emery cloth, sander; flat iron, sad iron; burnisher, turpentine and beeswax; polish, shoe polish.    [art of cutting and polishing gemstones] lapidary.    [person who polishes gemstones] lapidary, lapidarian.    ... show more

Polish: gładkość

Powerful and effective language:
— His oily smoothness concealed his guilt from the police.

synonyms: eloquence, fluency.

Dutch: eloquentie, welsprekendheid, welbespraaktheid, spreekvaardigheid
Polish: elokwencja, mówność, wygadanie, wymowność

The quality of being bland and gracious or ingratiating in manner.

synonyms: blandness, suaveness, suavity.

Dutch: vriendelijkheid

The quality of having a level and even surface.

Polish: równość

The quality of being free from errors or interruptions.