from the GNU version of the Collaborative International Dictionary of English.
- adjective Not according to law; being or done in violation of law; unlawful.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective obsolete Not according to
from Wiktionary, Creative Commons Attribution/Share-Alike License
un- + lawlike
In particular, nothing in the argument says that generalizations with grue predicates are ill-formed, unlawlike, or in some other way a priori inferior to “all emeralds are green”.