Antonyms of adj half-crazed

1 sense of half-crazed

Sense 1
crazed, deranged, half-crazed -- (driven insane)

INDIRECT (VIA insane) -> sane -- (mentally healthy; free from mental disorder; "appears to be completely sane")

Similarity of adj half-crazed

1 sense of half-crazed

Sense 1
crazed, deranged, half-crazed -- (driven insane)
       => insane (vs. sane) -- (afflicted with or characteristic of mental derangement; "was declared insane"; "insane laughter")