unhelpful or hurtful

unfavorable, antagonistic

causing discomfort, trouble or annoyance

bothersome, troublesome

causing, likely to cause, injury

hurtful

not suitable or favourable

not appropriate or suitable

said or done at an unsuitable time

not appropriate or suitable

having or giving an idea of a person, thing etc being unimportant, bad or valueless

negative, belittling

not working; not valuable

not working; not valuable

having no use; not able to do what is intended; having no result

not working; not valuable