Definitions

1. adjective

Having or becoming less firm or less strong in shape; less toned or less firm in texture.

“After a few months of inactivity, her muscles started to become flabbier.”

2. comparative

Comparing two things, with the first being less firm or less strong in shape; less toned or less firm in texture than the second.

“She looked flabbier than her sister, who had been exercising regularly.”

3. superlative

Comparing three or more things, with the one being least firm or least strong in shape; least toned or least firm in texture.

“He looked the flabbier of the two brothers, who had stopped exercising.”