poisonous

US /ˈpɔɪ.zən.əs/

UK /ˈpɔɪ.zən.əs/

1.

producing or containing poison

:

•

Be careful, some mushrooms are highly poisonous.

•

The snake's bite was poisonous.

:

toxic venomous deadly lethal

:

nonpoisonous harmless

2.

very unpleasant or malicious

:

•

He made a poisonous remark about her new dress.

•

The atmosphere in the office became poisonous after the argument.

:

malicious spiteful vicious bitter nasty

:

pleasant kind harmless

:

poison food poisoning