sound adj.

1 in good condition

VERBS be, feel, look, seem

ADV. extremely, very | fairly, pretty, quite, reasonably That seems like fairly sound advice. | structurally Is the building structurally sound?

PHRASES safe and sound (= not hurt) We arrived home safe and sound.

2 sensible

VERBS be, seem

ADV. extremely, very | absolutely, perfectly She had a perfectly sound reason for acting as she did. | fairly, pretty, reasonably | basically, fundamentally | commercially, ecologically, environmentally, financially, ideologically, theoretically It was a financially sound investment.