The adjective could be obsolete, outmoded, or superseded.
Obsolete
The terms used could be disengaged, or neutral.
There is no one-word substitute in English for "son-in-law."
The word you want is florist.
It is called a house call (sometimes erroneously used as one word).
Sportsmanship is a word substitute for spirit of game
The noun (used as plural) is condolences.
Though it is almost never used for a person, it would be a hydrophile.
The word is gondola, which is a traditional method of transportation there.
The word metalworking is one word.
eat, use
The word that works is idiot.