Unnatural
Part of speech: adjective
Definition: Not natural; supernatural or artificial.
Example sentence: I feel it is unnatural and immoral to try to teach science to children in a foreign language They will know facts, but they will miss the spirit.
Plummy
Part of speech: adjective
Definition: Of, pertaining to, containing, or characteristic of plumsdesirablerich, mellow and carefully articulated, especially with an upper-class accent