Webster's Revised Unabridged Dictionary · 1913

Inconsiderate

Inconsiderate , adjective

[Latin inconsideratus. See In- not, and Considerate.]

1.
Not considerate; not attentive to safety or to propriety; not regarding the rights or feelings of others; hasty; careless; thoughtless; heedless; as, the young are generally inconsiderate; inconsiderate conduct.
It is a very unhappy token of our corruption, that there should be any so inconsiderate among us as to sacrifice morality to politics. — Addison
2.
Inconsiderable. [Obsolete] — E. Terry