Unknown difficult Synonyms
Definitions for Unknown
- (adjective) happening or existing without one's knowledge
- (adjective) not known or experienced before
- (adjective) not widely known
Synonyms for phrase
UD abbreviation
UD is an abbreviation for Unknown DifficultWhat does UD stand for?
UD stands for "Unknown Difficult" Difficult replaced
Definitions for Difficult
- (adjective) requiring considerable physical or mental effort
- (adjective) requiring exceptional skill or caution in performance or handling
- (adjective) not easy ; requiring great physical or mental effort to accomplish or comprehend or endure