Ravine is a great game for 2-6 players, and it's co-operative which can make for a fun dynamic in a family.
Dixit is basically Balderdash but with pictures instead of words. Warning: you will want to get an expansion pack after playing the game 4-5 times.
Skull is wicked simple, highly portable, quick to play and explain, and very fun.
Azul is max four players, but it's a game with a really interesting increase in complexity and strategy as it goes on.
Boss Monster is also 2-4 players, but is extremely silly fun, and also highly portable.