Antonyms of adj watchful

2 senses of watchful

Sense 1
alert (vs. unalert), watchful -- (engaged in or accustomed to close observation; "caught by a couple of alert cops"; "alert enough to spot the opportunity when it came"; "constantly alert and vigilant, like a sentinel on duty")


Sense 2
insomniac, sleepless, watchful -- (experiencing or accompanied by sleeplessness; "insomniac old people"; "insomniac nights"; "lay sleepless all night"; "twenty watchful, weary, tedious nights"- Shakespeare)

INDIRECT (VIA awake) -> asleep -- (in a state of sleep; "were all asleep when the phone rang"; "fell asleep at the wheel")

Similarity of adj watchful

2 senses of watchful

Sense 1
alert (vs. unalert), watchful -- (engaged in or accustomed to close observation; "caught by a couple of alert cops"; "alert enough to spot the opportunity when it came"; "constantly alert and vigilant, like a sentinel on duty")
       => argus-eyed, open-eyed, vigilant, wakeful -- (carefully observant or attentive; on the lookout for possible danger; "a policy of open-eyed awareness"; "the vigilant eye of the town watch"; "there was a watchful dignity in the room"; "a watchful parent with a toddler in tow")
       => fly -- ((British informal) not to be deceived or hoodwinked)
       => heads-up, wide-awake -- (fully alert and watchful; "played heads-up ball")
       => lidless, sleepless -- (always watchful; "to an eye like mine, a lidless watcher of the public weal"- Alfred Tennyson)
          Also See-> awake#1; lively#1; wary#1

Sense 2
insomniac, sleepless, watchful -- (experiencing or accompanied by sleeplessness; "insomniac old people"; "insomniac nights"; "lay sleepless all night"; "twenty watchful, weary, tedious nights"- Shakespeare)
       => awake (predicate) (vs. asleep) -- (not in a state of sleep; completely conscious; "lay awake thinking about his new job"; "still not fully awake")