yavan
arid. dry. humdrum. insipid. nondescript. prosaic. tame. plain. dry. tasteless. unpleasant. disagreable. with too little oil. uninteresting. monotonous.

yavan
insipid. tasteless. eaten without anything else. arid. boring. drab. dreadful. dreary. humdrum. jejune. lackluster. mouldy. prosaic. prosy. in bad style. tame. threadbare. toneless. uninspired. unsavory. vapid. wishy washy.

yavanlaşmak
to go flat. to become dull or uninteresting.

yavanlık
vapidity. tastelessness. insipidity. dullness.