General Smallness:
* Tiny: Small in size; diminutive.
* Minute: Extremely small; often used for time but also for size.
* Little: Small in size, amount, or importance.
* Wee: Very small; often used for children or things that are cute.
* Diminutive: Very small in size; often used for things that are delicate or dainty.
* Microscopic: So small that it can only be seen with a microscope.
Figurative Smallness:
* Infinitesimal: Extremely small; almost zero.
* Negligible: So small that it's unimportant or insignificant.
* Trivial: Of little importance or value.
* Midget: A person or thing that is abnormally small.
* Petite: Small and delicate; often used for women.
* Miniature: A small-scale copy of something larger.
Specific to Size:
* Pocket-sized: Small enough to fit in a pocket.
* Compact: Small and tightly packed.
* Mini: A shortened form of "miniature," often used for small versions of things.
* Subatomic: Smaller than an atom.
* Nano: Relating to a nanometer, a unit of measurement one billionth of a meter.
Words for Specific Types of Smallness:
* Fine: Very small and delicate; often used for particles of dust or sand.
* Slight: Small in amount or degree.
* Frail: Weak and delicate; easily broken.
* Petite: Small and delicate; often used for women.
Words for Smallness in Quantity:
* Scant: Very small in amount.
* Meagre: Small and inadequate.
* Sparse: Thinly scattered or distributed.
* Limited: Restricted in size or quantity.
The best word to use depends on the specific context and the nuance you want to convey.