Some New Words

Front 1

abstruse

Back 1

1. Concealed, hidden, secret
(abstruse thoughts)

2. Difficult to understand, puzzling, confusing, obscure, perplexing.

Antonym: Simple

Front 2

tenacious

Back 2

1. Holding together, cohesive, tough, not easily pulled in pieces or broken.

2. Adhesive, viscous, glutinous, sticky.

3. Stubborn, determined.

Antonym: irresolute

Front 3

imperceptible

Back 3

Not perceptible, So slight, gradual, hardly noticeable.

Antonym: obvious

Front 4

exasperate

Back 4

1. To make harsh or rugged; to add harshness to (language, sounds, etc.);

2. To increase the fierceness or violence of (a disease, pain, appetite, etc.);

3. To embitter, intensify (ill-feeling, passion, wickedness.);

4. To irritate (a person); to provoke to anger;

Front 5

oblivious

Back 5

Unaware or unconscious