| dangerous(adjective, hazardous, troubling) |
| disapproving(adjective, mean, nasty, unfriendly, hateful) |
| dour(adjective, mean, nasty, unfriendly, hateful) |
| evil-minded(adjective, malicious, venomous) |
| froggy |
| hateful(adjective, mean, nasty, unfriendly, bitter) |
| ill-disposed(adjective, mean, nasty, unfriendly, hateful) |
| inhospitable(adjective, mean, nasty, unfriendly, hateful) |
| jealous(adjective, malicious, venomous) |
| mephitic |
| militant(adjective, mean, nasty, unfriendly, hateful) |
| nocuous |
| opposed(adjective, mean, nasty, unfriendly, hateful) |
| opposite(adjective, mean, nasty, unfriendly, hateful) |
| oppugnant(adjective, mean, nasty, unfriendly, hateful) |
| pugnacious(adjective, mean, nasty, unfriendly, hateful) |
| rancorous(adjective, mean, nasty, unfriendly, hateful) |
| reptile |
| reptilian |
| scrappy(adjective, mean, nasty, unfriendly, hateful) |