Frank J. Wilstach, comp. A Dictionary of Similes. 1916.

Unwelcome

Unwelcome as snow in summer.
—Anonymous

Unwelcome as water in a leaking ship.
—Anonymous

Unwelcome as water in your shoe.
—Anonymous

Unwelcome to a woman as a looking-glass after the small-pox.
—William Congreve

Unwelcome and unasked, like Banquo’s Ghost, in walked the long-lost Spouse.
—Thomas Hood

Unwelcome to any conceit as sluttish morsels, or wallowish potions to a nice stomach.
—Sir Thomas Overbury