There are many five letter words with no vowels. Crypt, Cysts, Dryly, Flyby, Glyph and Gypsy are some examples. If you don't consider Y a vowel!
What 11-letter word has five a's but no other vowels in it?
Rhythms is a seven letter word that contains no vowels.
enter
autau
angry
What 11-letter word has five a's but no other vowels in it?
If there is, it is not an English word.
Rhythms is a seven letter word that contains no vowels.
queue
enter
autau
angry
Pygmy or gypsy
guadalajara
rhythms
rhythms
queueing