In of water|lang=en terms the difference between soft and fresh
is that
soft is (of water) low in dissolved calcium compounds while
fresh is (of water) without salt; not saline.
As adjectives the difference between soft and fresh
is that
soft is easily giving way under pressure while
fresh is newly produced or obtained or
fresh can be rude, cheeky, or inappropriate; presumptuous; disrespectful; forward.
As nouns the difference between soft and fresh
is that
soft is a soft or foolish person; an idiot while
fresh is a rush of water, along a river or onto the land; a flood.
As an interjection soft
is (archaic) be quiet; hold; stop; not so fast.
As an adverb soft
is (
lb) softly; without roughness or harshness; gently; quietly.