undesirable
A. those who have harmful effects.
B. something or someone that are unpopular
constellations
A. a group of stars which form a pattern and have a name.
B. careful examination and comparison to note points of disagreement
label
A. be attached to it giving information about it
B. people generally describe them that way and you think that this is unfair.
appalling
A. (of characters in literature or drama) evoking empathic or sympathetic feelings
B. so bad or unpleasant that it shocks you