feebly
Definitions
In a manner that lacks physical strength, force, or energy.
In a way that is ineffective or inadequate.
Examples
The old man smiled feebly as he reached out to pat his grandson's hand.
The candle flickered feebly in the drafty room before finally going out.
Synonyms
weakly frailly faintly powerlessly ineffectively listlessly delicately
Antonyms
strongly powerfully vigorously robustly sturdily forcefully mightily