bitter

bitter [-er, -est] adj

OE biter > bitan, bite.

1. Unpleasant; grievous; painful; unpalatable to the mind; hard to accept; difficult to bear (see Exodus 1:14).
2. Strong; severe; extreme; sharp; cutting; polar; bitingly frigid; intensely cold.

bitter [-er] adv

see bitter, adj.

1. Unpleasantly; grievously; in a manner difficult to bear.