is a specific kind of: reconstruct, restore.

is the opposite of: compact, compress, pack together.

derivation: decompression.

is a specific kind of: adjust, correct, set.

is a broader term that covers: puncture.

is the opposite of: pressurise, pressurize.

derivation: decompressing, decompression.

is a specific kind of: change state, turn.

is a broader term that covers: vege out, vegetate | sit back, take it easy.

is the opposite of: tense, tense up.

derivation: ease, relaxation, repose, rest | relaxation | relaxant.