Covertly

 My dad's sister and husband.  Apparently, my aunt didn't like having her picture taken.  Circa 1965.

Tenderly

 My grandma and my mom from long ago.

Beauties

 I can't imagine going for a hike in a dress, but they look cute doing it.  Circa 1950.

Inopportunely

 When you're just trying to enjoy a slice of company birthday cake and the paparazzi start clicking away.

One of mom's co-workers from long ago.

Lackadaisically

 Ladies used to have rip-roaring parties back in the day.