IPA: /ˈθʌndəri/
KK: /ˈθʌndəri/
Describing weather that is stormy and includes thunder.
The sky turned dark and thundery as the storm approached.
Comparative: thundier
Superlative: thunderiest
Thundery → It is formed from "thunder" (from Old English "þunor", meaning a loud noise or rumble) and "-y" (a suffix used to form adjectives indicating a characteristic). The word "thundery" describes something that has the characteristics of thunder, often referring to stormy weather.
Think of the Old English word for a loud noise, 'thunder', and remember that 'thundery' describes weather that has the characteristics of that loud noise.