facile

/ˈfa.sʌɪl/

adjective

1. Easy, now especially in a disparaging sense; contemptibly easy.

2. Amiable, flexible, easy to get along with.

Example: His facile disposition made him many friends.

3. Effortless, fluent (of work, abilities etc.).

4. Lazy, simplistic (especially of explanations, discussions etc.).

5. Of a reaction or other process, taking place readily.

Example: Decarboxylation of beta-keto acids is facile...