Adjective at sea has 2 senses
- baffled, befuddled, bemused, bewildered, confounded, confused, lost, mazed, mixed-up, at sea - perplexed by many conflicting situations or statements; filled with bewilderment; "obviously bemused by his questions"; "bewildered and confused"; "a cloudy and confounded philosopher"; "just a mixed-up kid"; "she felt lost on the first day of school"
Antonym: unperplexed (indirect, via perplexed)
- at sea, sailing - traveling by boat or ship
Antonym: aground (indirect, via sunken, afloat)
Antonyms: sunken, submerged (indirect, via afloat, aground)
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