musty smell, slight bad smell, taint
whiff, faint scent, hint of a smell
smack, tinge, streak
whiff, faint smell, slight odor, hint of a bad smell
Почу́вствуй ле́гкий запа́х.
Take a whiff.
От его слов веяло запашком лжи.
His words had a whiff of lies about them.