inexorable: not to be moved by entreaty; unyielding; relentless
entreaty: an earnest request or petition; a plea
In the boxing ring, he was an inexorable opponent.
proliferate: to quickly reproduce or spread
Wildflowers proliferate in the meadow outside our home.
recalcitrant: stubbornly resistant to and defiant of authority, discipline or guidance
defy: to oppose or resist with boldness and assurance
The recalcitrant child refused to listen to his teacher.
treachery: perfidy, disloyalty, or treason
perfidy: deliberate breach of faith; calculated violation of trust
His treachery was eventually discovered.
grouse: complain; grumble
He frequently groused about his computer's poor performance.
waft: float, as on the wind
With a gentle puff, she sent the seeds wafting into the summer breeze.
caustic: corrosive; that which can destroy tissue by chemical action
Caustic substances should be safely stored in sealed containers.
pundit: actual or self-professed authority
The former journalist was now a political pundit on a cable television talk show.
The energertic cheerleaders exhorted their team to win.