An antonym for alert would be notify or inform.
The antonym word for Ratlines would be Disratlines
A close antonym would be shrinkage.
The antonym (opposite) of opposite would be same, similar, or alike.
As a segment means a piece or fraction, the antonym would be *whole*
An antonym for stagger could be "balance" or "steady."
Unalert is alert's antonym or opposite.
An antonym for tired would be energized or refreshed.
Asleep, not paying attention, lazy
informal
No. AN antonym for deceased would be alive. An antonym for friendly would be unfriendly or hostile.
No. An antonym for answer would be unknown or mystery.
There would not be an antonym for equipment.
Elation would be an antonym.
synonym would be contemplated. antonym would be disregarded.
In the sense of 'lewd', an antonym would be 'conservative' or 'puritanical'. In the sense of 'slippery', an antonym would be 'sticky'.
The antonym of prehistoric would be, modern.
"Lose" would be an antonym for "win". "Defeat" would b e an antonym for "Victory".