on one's toes

Ready for anything

Alert and ready to act quickly.

The image is of someone poised to move at a moment's notice, weight forward, not caught flat-footed.

To keep someone on their toes is to maintain conditions that demand their attention and readiness: Random inspections keep the staff on their toes.

To stay on your toes is to remain vigilant.

Related

focus · alert · on guard · coordination · spring · resourcefulness · hair-trigger · responsiveness · watchful · vigilant · flexibility · tiptoe · quick-thinking · quick · eagle-eyed · stay sharp · stay frosty · adaptability

Opposites
alertness and readiness

on one's toesasleep at the wheel

Failing to supervise properly

caught off guard · off guard · flat-footed · unaware · oblivious

mental engagement

on one's toescomplacent

Uncritically self-satisfied

lethargic · drowsy · spacey · zoned out · spaced out

responsiveness to change

on one's toescomplacent

Uncritically self-satisfied

stagnant · set in one's ways · resting on one's laurels · coasting · passive

Family

toe, onto, toes, oneself, tows, one's, on tiptoe

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G