We don't have synonyms for sundowns yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are rundown, sundowner and sundown.
(n) :
(countable) A hat with a wide brim to shade the eyes from sunlight.
(v) :
(intransitive) to experience an episode or an onset of some detrimental mental condition like agitation, anxiety, hallucination or dementia, daily at nightfall.
(n) :
(countable) A hat with a wide brim to shade the eyes from sunlight.
(v) :
(intransitive) to experience an episode or an onset of some detrimental mental condition like agitation, anxiety, hallucination or dementia, daily at nightfall.