Definitions

1. adjective

comparing two or more things in terms of their speed or rate of rotation.

“The whirlier blades of the helicopter created a strong gust of wind.”

2. comparative

more whirling or rotating rapidly

“This whirlier engine can produce more power than the previous model.”

3. superlative

most whirling or rotating rapidly

“The whirlier of the two fans in the room was producing a loud humming noise.”