curious

As adjectives the difference between curious and apathetic

is that curious is fastidious, particular; demanding a high standard of excellence, difficult to satisfy while apathetic is void of feeling; not susceptible of deep emotion; passionless; indifferent.

As adjectives the difference between philosophical and curious

is that philosophical is of, or pertaining to, philosophy while curious is (lb) fastidious, particular; demanding a high standard of excellence, difficult to satisfy.

As adjectives the difference between insightful and curious

is that insightful is possessing insight while curious is (lb) fastidious, particular; demanding a high standard of excellence, difficult to satisfy.

As adjectives the difference between curious and encouraging

is that curious is fastidious, particular; demanding a high standard of excellence, difficult to satisfy while encouraging is giving courage, confidence or hope.

As a verb encouraging is

present participle of lang=en.

As an adjective curious

is (lb) fastidious, particular; demanding a high standard of excellence, difficult to satisfy.

As a noun doubt is

uncertainty, disbelief.

As a verb doubt is

(ambitransitive) to lack confidence in; to disbelieve, question, or suspect.

As an adjective curious

is fastidious, particular; demanding a high standard of excellence, difficult to satisfy.

As a noun challenger is

one who challenges.

As a proper noun Challenger is

the space shuttle Challenger, named after the HMS Challenger (1858), destroyed on January 28, 1986 with loss of its seven-member crew.

As a verb riveted

is (rivet).

As an adjective curious is

(lb) fastidious, particular; demanding a high standard of excellence, difficult to satisfy.

As an adjective curious

is fastidious, particular; demanding a high standard of excellence, difficult to satisfy.

As a noun concern is

that which affects one's welfare or happiness.

As a verb concern is

to relate or belong to; to have reference to or connection with; to affect the interest of; to be of importance to.

As adjectives the difference between curious and gifted

is that curious is (lb) fastidious, particular; demanding a high standard of excellence, difficult to satisfy while gifted is endow]]ed with special, in particular intellectual, [[ability|abilities.

As a verb gifted is

(gift).

As a verb study

is (usually|academic) to revise materials already learned in order to make sure one does not forget them, usually in preparation for an examination.

As a noun study

is (label) a state of mental perplexity or worried thought.

As an adjective curious is

(lb) fastidious, particular; demanding a high standard of excellence, difficult to satisfy.