unconsiderate

Adjective

inconsiderate (comparative more inconsiderate, superlative most inconsiderate)

1. Not considerate of others.
   • Not replacing the roll after using the last of the toilet paper is very inconsiderate.

   Synonyms:

   thoughtless, unthoughtful, unthinking

   Antonyms:

   considerate, thoughtful

2. (obsolete) Not giving enough consideration to one's actions, conclusions, etc.; acting too quickly without considering the risks and consequences.
   • And all the unsettled humours of the land,
     Rash, inconsiderate, fiery voluntaries, […]
     Have sold their fortunes at their native homes,
     Bearing their birthrights proudly on their backs,
     To make hazard of new fortunes here:c. 1596 (date written), William Shakespeare, “The Life and Death of King Iohn”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward]...

   Synonyms:

   hasty, inattentive, rash, unreflecting

3. (obsolete) Resulting from insufficient consideration.
   • I am ouer-ready to pardon young ouersights, and forgiue inconsiderate offences:1593, Gabriel Harvey, Pierces Supererogation or A New Prayse of the Old Asse, London: John Wolfe, page 175

   Synonyms:

   unconsidered

4. (obsolete) Of too little value to be considered.
   • […] when they had sold any one of their bullooks to us, for a little inconsiderate peece of brasse, if we did not presently knock him down, they would by the same call, make the poor creature break from us and run unto them again, and then there was no getting them out of their hands, but by giving...1655, Edward Terry, A Voyage to East-India, London: J. Martin and J. Allestrye, pages 15–16

   Synonyms:

   inconsiderable, negligible, trifling