General Negative/Opposite:
* disagree
* disapprove
* disarm
* disappear
* disassemble
* disbelief
* disconnect
* discontinue
* discourage
* discover (meaning "to uncover" or "to find something previously hidden")
* disease
* dishonest
* dislike
* disloyal
* dismiss
* disorder
* displease
* disrupt
* dissatisfied
* dissolve
* distaste
* distrust
Movement/Separation:
* disband
* dislodge
* displace
* disperse
Other:
* disadvantage
* discomfort
* disguise
* dismantle
* disregard
* disrupt
* dissociate
* disturb
Note:
* Some words with "dis" are prefixes, meaning they are added to the beginning of a word to change its meaning. For example, "dis" added to "agree" creates "disagree."
* In some words, "dis" may not have a negative meaning, like "discover."
* "Dis" is also sometimes used as a separate word meaning "a" or "each," like in "twice a day."
This is not an exhaustive list, but it gives you a good starting point!