Definify.com

Webster 1913 Edition

Adj.

Accompanied with thunder; thunderous.

[R.]

“Thundery weather.”

Pennant.

thundery ‎(comparative more thundery, superlative most thundery)

(of weather) stormy, with thunder
- 1857, Charles Dickens, Little Dorrit, book 1, chapter 29
  She stood at the open door, staggering herself with this enigma, on a rainy, thundery evening.
- 1920, Arthur H. Savory, Grain and Chaff from an English Manor:
  The only real objection to peacocks, under ordinary conditions, is the discordance of their cries, especially in thundery weather, when they scream in answer to every thunder-clap.