smoothest >> smuːð
Definition: [adjective] having an even and regular surface; free from perceptible projections, lumps, or indentations.
Example: smooth flat rocks
Definition: [adjective] (of movement) without jerks.
Example: the trucks gave a smooth ride
Definition: [adjective] (of an action, event, or process) without problems or difficulties.
Example: the group's expansion into the US market was not quite so smooth
Definition: [adjective] (of a person or their manner) suavely charming in a way regarded as possibly insincere.
Example: his voice was infuriatingly smooth
Definition: [adjective] (of food or drink) without harshness or bitterness.
Example: a lovely, smooth, very fruity wine