silliness Antonyms

levelheadedness sanity saneness sageness sagacity ripeness reasonableness reason rationality quickness prudence precociousness practicality perspicacity percipiency perception pansophy sapience seamanship self-knowledge level-headedness intuitiveness expertise brains flair good sense astuteness shrewdness wit wisdom understanding soundness smartness sharpness sensibleness sense lucidness lucidity logic dialectics dextrousness dexterity craftsmanship comprehension common sense cleverness clairvoyance canniness calculation brightness