Sentence Completion

Reluctant (adj.) means unwilling to do what one is being called to do.

Jubilant (adj.) means rejoicing; expressing joyfulness; exulting.

Hypothesis (n.) is a proposition, believed to be probable, which is adopted to explain certain facts and which can be further tested.

Travail (n.) means hard or agonizing labor.

To gibe (v.) means to taunt or jeer; to utter a taunting or sarcastic remark.

To obtrude (v.) means to stick out, push forward.

Rancid (adj.) means rotten or putrid.

Liability (n.) is a debt or obligation; something for which one is liable.

Sentient (adj.) means possessing the power of sense or senseperception; conscious.