Not derivable; uncapable of being derived.

Not strict. / (mathematics) Of an inequality, such that it includes the possibility of equality.

Not capitalist.

One who is not a capitalist.

plural of non-science

Not moral; unconnected with morals; having no relation to ethics or morals; not involving ethical or moral considerations.

(music, voice) A note extremely high in the register, but not falsetto.

(finance) One who trades financial products (such as stocks) not based on fundamental analysis.

plural of no mean feat

(litotes) A laudable triumph of great difficulty; no small feat.