Re: what to choose here..
navigator wrote:1)The truth was that the prophecy was truthful / genuine / veridical.
2)The disagreement / contention / discordance.
3)What a logjam / stalemate / fix / impasse / rattrap!
4)The husband / spouse said kindly.
5)I waited until the giddiness / vertigo gone.
6)I was sitting on the couch / settee.
Thanks

1. Genuine. You don't want to repeat the word "truth," and the word "veridical" is, for want of a better term, esoteric.
5. Giddiness. Similar to #1, "vertigo" is a more specialized term. Always go with the "easier" word when possible (though, understandably, if English is your second language, you wouldn't know the difference, unfortunately). (Note: no matter which word you used, you would need to include "had": "I waited until the giddiness/vertigo
had gone.")
6. "Couch" is what we say in America.
2, 3, & 4, in my opinion, depend entirely on context.