Similar words
trüb
trüb is more about dullness or murkiness, and can also apply to liquids, not just the sky; bewölkt is purely meteorological, "cloudy."
Similar in other languages
Spanish
indistinto
Close, figuratively — cloudy relates to indistinct (indistinto).
English
opaque
Close — opaque relates to cloudy (bewölkt).
English
overcast
overcast and German bewölkt both directly mean covered in clouds.
Practice
1 What does bewölkt mean?
cloudy
2 Fill the gap: Der Himmel ist heute ___.
Full sentence: Der Himmel ist heute bewölkt. (The sky is cloudy today.)
3 Which fingerprint chart matches bewölkt?
bewölkt: neutral register, common frequency, general domain, neutral connotation.