The difference between Lenient and Strict

When used as adjectives, lenient means lax, whereas strict means strained.

Lenient is also noun with the meaning: a lenitive.

check bellow for the other definitions of Lenient and Strict

Lenient as an adjective:

Lax; not strict; tolerant of dissent or deviation

Examples:

"The standard is fairly lenient, so use your discretion."

Strict as an adjective:

Strained; drawn close; tight.

Examples:

"strict embrace"

"strict ligature"
Strict as an adjective:

Tense; not relaxed.

Examples:

"strict fiber"
Strict as an adjective:

Exact; accurate; precise; rigorously nice.

Examples:

"to keep strict watch"

"to pay strict attention"
Strict as an adjective:

Governed or governing by exact rules; observing exact rules; severe; rigorous.

Examples:

"very strict in observing the Sabbath"
Strict as an adjective:

Rigidly interpreted; exactly limited; confined; restricted.

Examples:

"to understand words in a strict sense"
Strict as an adjective (botany):

Upright, or straight and narrow; — said of the shape of the plants or their flower clusters.
Strict as an adjective:

Severe in discipline.

Examples:

"Our teacher was always very strict. If we didn't behave, we would get punished."

"It was a very strict lesson."
Strict as an adjective (set theory, order theory):

Irreflexive; if the described object is defined to be reflexive, that condition is overridden and replaced with irreflexive.