clear (Adjective) : easy to see or understand
ambiguous (Adjective) : not clearly stated or defined; having different meanings ; that can be understood in more than one way
plain (Adjective) : easy to see or understand; clear
simple (Adjective) : plain
easy (Adjective) : simple; not difficult

Correct Option: B

clear (Adjective) : easy to see or understand
ambiguous (Adjective) : not clearly stated or defined; having different meanings ; that can be understood in more than one way
plain (Adjective) : easy to see or understand; clear
simple (Adjective) : plain
easy (Adjective) : simple; not difficult

rash (Adjective) : impulsive ; reckless ; doing something that may not be sensible without first thinking about the possible results wary (Adjective) : cautious ; careful while dealing with somebody/something
conscientious (Adjective) :taking care to do things carefully and correctly
daring (Adjective) : brave
thrifty (Adjective) : stingy

Correct Option: D

rash (Adjective) : impulsive ; reckless ; doing something that may not be sensible without first thinking about the possible results wary (Adjective) : cautious ; careful while dealing with somebody/something
conscientious (Adjective) :taking care to do things carefully and correctly
daring (Adjective) : brave
thrifty (Adjective) : stingy

deliberately (Adverb) : intentionally; on purpose; slowly and carefully; not by chance
inadvertently (Adverb): unintentionally ; by accident ; without intending to
secretly (Adverb) : not openly
accidently (Adverb) : by accident
completely (Adverb) : totally

Correct Option: D

deliberately (Adverb) : intentionally; on purpose; slowly and carefully; not by chance
inadvertently (Adverb): unintentionally ; by accident ; without intending to
secretly (Adverb) : not openly
accidently (Adverb) : by accident
completely (Adverb) : totally

sharp–witted (Adjective) : having sharp intelligence
obtuse (Adjective) : slow or unwilling to understand ; blunt
transparent (Adjective) : not opaque
timid (Adjective) : not brave ; shy and nervous
blunt (Adjective) : saying exactly what you think without trying to be polite

Correct Option: A

sharp–witted (Adjective) : having sharp intelligence
obtuse (Adjective) : slow or unwilling to understand ; blunt
transparent (Adjective) : not opaque
timid (Adjective) : not brave ; shy and nervous
blunt (Adjective) : saying exactly what you think without trying to be polite

sanity (Noun) : the state of having a normal healthy mind ; the state of being sensible and reasonable
lunacy (Noun) : behaviour that is stupid or crazy ; madness ; mental illness
stupidity (Noun) : behaviour that shows a lack of thought or good judgement ; the state or quality of being slow to learn and not clever/intelligent
sensibility (Noun) : the ability to experience and understand deep/feelings
insanity (Noun) : madness ; lunacy

Correct Option: A

sanity (Noun) : the state of having a normal healthy mind ; the state of being sensible and reasonable
lunacy (Noun) : behaviour that is stupid or crazy ; madness ; mental illness
stupidity (Noun) : behaviour that shows a lack of thought or good judgement ; the state or quality of being slow to learn and not clever/intelligent
sensibility (Noun) : the ability to experience and understand deep/feelings
insanity (Noun) : madness ; lunacy