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

Timid

Timid as a child deserted by its nurse.
—Anonymous

Timid as a falling snowflake.
—Anonymous

Timid as a mouse.
—Anonymous

Timid voice, like a baby afraid of punishment.
—Hermann Bahr

As timid, touching and inquiring, as she who charmed the gods from the threshold of Olympus.
—Dr. John Doran

Timid as a youth can be.
—Mahabharata

Timid as a doe.
—Robert Noel

Timid as a sheep.
—Ouida

Timid as a fawn.
—William Makepeace Thackeray