Strong's #4642: skleros (pronounced sklay-ros')

from the base of 4628; dry, i.e. hard or tough (figuratively, harsh, severe):--fierce, hard.

Thayer's Greek Lexicon:

́

sklēros

1) hard, harsh, rough, stiff

1a) of men: metaphorically harsh, stern, hard

1b) of things: violent, rough, offensive, intolerable

Part of Speech: adjective

Relation: from the base of G4628

Citing in TDNT: 5:1028, 816

Usage:

This word is used 6 times:

 

Matthew 25:24: "I knew thee that thou art a hard man, reaping where"
John 6:60: "this, said, This is a hard saying; who can hear"
Acts 9:5: "whom thou persecutest: it is hard for thee to kick against the pricks."
Acts 26:14: "why persecutest thou me? it is hard for thee to kick against the pricks."
James 3:4: "and are driven of fierce winds, yet are they turned about with a very small"
Jude 1:15: "and of all their hard speeches which ungodly sinners have spoken"