Emily Dickinson Lexicon

CON-SID'ER-A-BLE, a. [Fr. and Sp. See Consider.]

1. That may be considered; that is to be observed, remarked or attended to. It is considerable, that some urns have had inscriptions on them, expressing that the lamps were burning. – Wilkins. [This primary use of the word is obsolescent or very rarely used.]
2. Worthy of consideration; worthy of regard or attention. Eternity is infinitely the most considerable duration. – Tillotson. As that which is worthy of regard is in some measure important, hence
3. Respectable; deserving of notice; of some distinction; applied to persons. Men considerable in all worthy professions, eminent in many ways of life. – Spratt.
4. Important; valuable; or moderately large, according to the subject. Considerable aid was expected from the allies. A man has a considerable estate in Norfolk. A considerable sum of money was collected. Sometimes followed by to. He thought his aid considerable to him.