Definition- experimental; temporary; uncertain The dance team was happy that the schedule was only tentative because that meant they still had a chance of dancing last like they wanted to.
Antonym- permanent After getting a tattoo, it finally hit her that it was permanent.
Definition- unadorned; stern; forbidding; without much money The Titanic seemed big back in the day, but now is austere compared to today's cruise lines
Antonym- extravagant The extravagant birthday party was on MTV's My Super Sweet Sixteen.
Definition- seriousness The gravity of the situation finally dawned on us when we realized we could get our license taken away as the cops turned on their sirens.
Antonym- unimportance The props were the unimportance to the judges whether that team got extra points or not.