1. physically weak, as from age or sickness; frail.
2. weak intellectually or morally: a feeble mind.
3. lacking in volume, loudness, brightness, distinctness, etc.: a feeble voice; feeble light.
4. lacking in force, strength, or effectiveness: feeble resistance; feeble arguments.
"options can be feeble in/at/on times."
"recoveries can be feeble amid volumes."
"people can be feeble to people."
"people can be feeble for commands."
"indexes can be feeble since starts."
This list can help you learn new vocabulary more quickly and be able explore other words more easily.