'pessimal' definitions:
Definition of 'pessimal'
(from WordNet)
adjective
Of an organism's environment; least favorable for survival [syn: pessimal, pessimum(a)]
Definition of 'pessimal'
From: GCIDE
- pessimal \pes"si*mal\ adj. Least favorable for survival; -- of an organism's environment.
- Syn: pessimum(prenominal). [WordNet 1.5]