(uninteresting because) unchanging, without variety

all the same, remaining the same

an informal meeting of friends to sing songs together

all the same, remaining the same

without a bend or curve; level; even; upright; continuous; in good order; (of a person, behaviour, performance) honest; serious; (of alcoholic drink) without anything added; immediately

aligned; not curved

annoying

irritating, exasperating

(of a storm etc) (continuing) without a decrease in strength

continuous, never-ending

complete; absolute

absolute, pure