tinier
Tinier is the comparative form of the adjective tiny, used to describe something that is smaller in size relative to another object or reference point. It conveys a greater degree of smallness than the base adjective tiny and appears in both spoken and written English. The standard superlative form is tiniest, as in the smallest of the group.
Etymology and form: Tiny is an English adjective with uncertain early origins, dating to the early Modern
Usage: Tinier is common in everyday language and is suitable for describing physical dimensions or smallness