Inconsiderable (adjective)
Too trivial or unimportant to be worthy of attention.
Inconsiderate (adjective)
Not considerate of others, thoughtless.
“Failing to replace the roll after using last of the toilet paper is very inconsiderate.”
Inconsiderate (adjective)
inconsiderable
Wiktionary
Inconsiderable (adjective)
of small size, amount, or extent
“a not inconsiderable amount of money”
Inconsiderable (adjective)
unimportant or insignificant
“a not inconsiderable artist”
Inconsiderate (adjective)
thoughtlessly causing hurt or inconvenience to others
“it’s inconsiderate of her to go away without telling us”
Oxford Dictionary