Definition: Occurring before breakfast.

Marjorie’s herbalist had lectured her about the calming properties of eating tomatoes and celery for breakfast.

Dutifully, she was roasting some tomatoes and viewing some celery when a banging and shouting alerted her to the arrival of her 6 grandchildren.

At this point, she imbibed an antejentacular shot of vodka and marvelled at her herbalist’s wisdom.

Everyone knows Bloody Marys are good for you.