Strength-strength, insult-bullying, seriousness-severity, leadership-leadership, stalemate-plot against (adding temples on the mountain)-scheming, vague-hazy, defensive-protection, obstruction-obstruction, vigilance-guard, sinister-vicious.

Antonym:

Doubt-conviction, pride-dejected, dumbfounded-laughing, strong-weak, respectful-insults, broken promises, countless-very few.