Antonyms of adj precarious

3 senses of precarious

Sense 1
precarious, unstable -- (affording no ease or reassurance; "a precarious truce")

INDIRECT (VIA uneasy) -> easy -- (free from worry or anxiety; "knowing that I had done my best, my mind was easy"; "an easy good-natured manner"; "by the time the chsild faced the actual problem of reading she was familiar and at ease with all the elements words")

Sense 2
parlous, perilous, precarious, touch-and-go -- (fraught with danger; "dangerous waters"; "a parlous journey on stormy seas"; "a perilous voyage across the Atlantic in a small boat"; "the precarious life of an undersea diver"; "dangerous surgery followed by a touch-and-go recovery")

INDIRECT (VIA dangerous) -> safe -- (free from danger or the risk of harm; "a safe trip"; "you will be safe here"; "a safe place"; "a safe bet")

Sense 3
precarious, shaky -- (not secure; beset with difficulties; "a shaky marriage")

INDIRECT (VIA insecure) -> secure -- (free from danger or risk; "secure from harm"; "his fortune was secure"; "made a secure place for himself in his field")

Similarity of adj precarious

3 senses of precarious

Sense 1
precarious, unstable -- (affording no ease or reassurance; "a precarious truce")
       => uneasy (vs. easy) -- (lacking a sense of security or affording no ease or reassurance; "farmers were uneasy until rain finally came"; "uneasy about his health"; "gave an uneasy laugh"; "uneasy lies the head that wears the crown"; "an uneasy coalition government"; "an uneasy calm"; "an uneasy silence fell on the group")

Sense 2
parlous, perilous, precarious, touch-and-go -- (fraught with danger; "dangerous waters"; "a parlous journey on stormy seas"; "a perilous voyage across the Atlantic in a small boat"; "the precarious life of an undersea diver"; "dangerous surgery followed by a touch-and-go recovery")
       => dangerous (vs. safe), unsafe -- (involving or causing danger or risk; liable to hurt or harm; "a dangerous criminal"; "a dangerous bridge"; "unemployment reached dangerous proportions")

Sense 3
precarious, shaky -- (not secure; beset with difficulties; "a shaky marriage")
       => insecure (vs. secure), unsafe -- (lacking in security or safety; "his fortune was increasingly insecure"; "an insecure future")