on the qui vive (adjective) alert: attentive, lively
Sinonime: contributed, donated, due, freewilled, gratuitous, honorary, unindemnified, unrecompensed, unremunerated, unrewarded, unsalaried,
voluntary, volunteer
Antonime: asleep, drowsy,
inattentive,
lethargic,
sluggish, unobservant,
weary