from the GNU version of the Collaborative International Dictionary of English
- adj. Left-handed on both sides; clumsy; -- opposed to
from The Century Dictionary and Cyclopedia
- Unable to use either hand with facility: the opposite of ambidextrous.
First attested in English in 1646: from Latin ambilaevus (ambi- ("both") + laevus ("left")), a calque of Ancient Greek ἀμφαρίστερος (ampharisteros, "with two left hands, awkward, clumsy") from ἀμφί (amphi, "on both sides") + ἀριστερός (aristeros, "left"). (Wiktionary)