Antonyms of adj half-hardy

1 sense of half-hardy

Sense 1
half-hardy -- ((of plants) requiring protection from frost; "half-hardy annuals")

INDIRECT (VIA robust) -> frail -- (physically weak; "an invalid's frail body")

Similarity of adj half-hardy

1 sense of half-hardy

Sense 1
half-hardy -- ((of plants) requiring protection from frost; "half-hardy annuals")
       => robust (vs. frail) -- (sturdy and strong in form, constitution, or construction; "a robust body"; "a robust perennial")