Part of speech: Adjective
having the requisite qualities or resources to meet a task
Example: she had adequate training; her training was adequate; she was adequate to the job; he was equal to the task
Part of speech: Adjective
sufficient for the purpose
Example: an adequate income; the food was adequate; a decent wage; enough food; food enough
Part of speech: Adjective
about average; acceptable
Example: more than adequate as a secretary
Equal, Fair to middling, Enough, Tolerable, Decent
The word "adequate" comes from Latin adaequatus.
Many Latin words entered English twice—once through French and once through direct borrowing.