1The thoughtless comment she made during the meeting really hurt her colleague's feelings.
2Is it thoughtless to assume that everyone has access to the internet and can therefore work remotely?
3The new policy has been criticized for being thoughtless towards the needs of low-income families.
4It was thoughtless of him to leave his dirty dishes for others to clean up after the party.
5There is a fine line between being spontaneous and being thoughtless; consider the impact of your actions on those around you.