Simple but very long password

Is it safe to use simple but very long passwords?

e.g: YaddaYaddaYaddaYaddaYaddaYaddaYaddaYaddaYaddaYaddaYaddaYaddaYadda

what if I use a non-dictionary word?

e.g: SENSOUSENSOUSENSOUSENSOUSENSOUSENSOUSENSOUSENSOUSENSOUSENSOU

what I throw in a bunch of numbers and chars here and there?

Thanks

Kenzo