Coming or following in close succession; crowding.
The Century Dictionary (Public Domain)
Use "thick-coming" in a sentence
"While Count Robert was thus reflecting upon his condition, and combating the thick-coming doubts and suspicions which its uncertainties gave rise to, he began to be sensible that he had not eaten for many hours; and amidst many doubts and fears of a more heroic nature, he half entertained a lurking suspicion, that they meant to let hunger undermine his strength before they adventured into the apartment to deal with him."
"In a musing mood, Roland Graeme upon the ensuing morning betook himself to the battlements of the Castle, as a spot where he might indulge the course of his thick-coming fancies with least chance of interruption."
"They had, however, their own peculiar superstitions, which overclouded the mind with thick-coming fancies, as completely as the puritanism of their neighbours."